Spirit/Entity Work and Spirit/Entity Worship are two different things. Spirit/Entity work involves working with spirits/entities that assist the practitioner in their metaphysical and mundane lives. It's forming a relationship between yourself and the spirit/entity as a partnership to ask for their assistance in exchange for offerings or work to be done on behalf of the spirit/entities.
It's not always guaranteed that the spirit/entity you petition for help in whatever it is you need help with will actually agree to help you and that's okay one, respect their wishes and two, there are other spirits/entities you can reach out to for help with your situation. On the other hand the same goes if a spirit/entity reaches out to you for whatever reason, you're not obligated to work with them (whether at this time or at all) if you don't want to.
Spirit/Entity worship is when you devote yourself or an aspect of your life, practice etc. to a spirit/entity. It's you honouring said spirit/entity by living your life according to the values of said spirit/entity and the culture they originate from and by adopting their morals, values etc. and living your life in a way that not only shows respect and honour to the spirit/entity but the culture they originate from as well.
While the interactions between the spirit/entity and the devotee isn't as much or as frequent as it would've been between a spirit/entity and their practitioner. Sometimes the spirit/entity will visit their devotee from time to time and sometimes spirits/entities do decide to bless their devotees in some way if they think that their devotees deserve it. Now this isn't something to work towards, neither should it really be an aim. Just be authentic in your devotion and good things might happen.
You don't have to be a witch/call yourself a witch to work or worship spirits/entities, neither does working or worshiping spirits/entities make you a witch. However, you can incorporate working or worshiping spirits/entities into your witchcraft if that's what you'd like, but remember you don't have to be a witch to practice either paths and neither does practising either paths make you a witch.
Before starting with spirit/entity work or worship decide which you like more spirit/entity work or spirit/entity worship? Which practice resonates with you more? For the rest of this post I will be talking in terms of spirit/entity work, because I'm a spirit/entity worker and have much more experience in spirit/entity work than I do spirit/entity worship.
Before delving into spirit/entity work decide which facets of spirit/entity work you'd like to focus on. There's general spirit/entity work (or eclectic spirit/entity work) where you work with a mix of different types of spirits and entities like deites, angels, the good neighbours, pop culture entities, demons etc. You could also look at specific facets of spirit/entity work like deity work (where you mainly work with deities) , ancestor work (where you mainly work with your ancestors) , demon/infernal work (where you mainly work with demons and other infernal spirit/entities (like underworld gods)), fae work (where you mainly work with the fae and other fae-like spirits and entities) and so on.
No facet of spirit/entity work is any less or more important or any less or more hard work than the other. They all have different ways of being handled and each facet has different rules and regulations than the other facets (some facets' rule collide in some cases). You don't have to decide immediately on which facet you'd like to focus on. Do your research, test the waters and than decide which facets you'd like to focus on.
Do a bit more research on the facet of spirit/entity work you'd like to focus on and also make sure you're in a comfortable place with the basics of protection, warding etc, the basics of energy work (or at least energy sensing), the basics of vetting (and when I say vetting I'm not talking about vetting them to figure out if they're some imposter spirit (but if imposter spirits are apart of your practice than sure you can do the vetting with this in mind) , I mean vetting in the way of getting to know the spirit/entity more), make sure you have a reliable method of divination yet (and if possible have someone you can trust and that's reliable who can confirm or deny your findings) and make sure you at least have some basics understanding of what boundaries are and the dos and don'ts of boundaries.
Say for instance you've decided you'd like to do deity work. If you've felt drawn to a specific (open and welcoming) pantheon like the Greek pantheon or the Celtic pantheon than do more research on the pantheon of your choosing, research the culture, the practices, the dos and don'ts of the culture and of course do research on the deity(s) you'd like to work with. Once you feel like you're in a comfortable place with the knowledge you have send out an invitation to the deity and hope they bite and reach out to you.
Remember even if they reach out it's not guaranteed that they'll actually work with you. They might just be reaching out to check out whoever it was that invited them. If they don't reach out, leave it at that, don't try and force the situation and just move on. There are plenty more deities in the universe who would be much more suited for you and your needs and interested in working with you.
You don't have to have had worshipped or honoured the deity before reaching out to work with them to start working with the deity, but if that's something you'd like to do than that's completely okay and you can do that if you'd like. You can also decide to do spirit/entity worship before you delve into spirit/entity work if you'd first like to get comfortable with the whole practice and if you're still trying to figure out what it is you'd like from this practice and no.
Remember you actually have to be willing to do the work if you do decide to delve into spirit/entity work (I think there are certain spirits/entities who do send their devotees tests and such, so you definitely also have to be willing to do the work when it comes to spirit/entity worship too). You can't just decide to reach out to a spirit/entity (whether they're a deity, angel, demon etc), if you're not willing or wanting to put in the necessary work.
There are a lot of spirits/entities that do not take kindly to their time being wasted for no reason and if this happens multiple times remember that the spirits and entities love to gossip and your name will definitely be shared if you think disrespecting them in such a way (not doing your work even after asking or agreeing to work with them and not keeping your end if the deal of whatever agreement you and the spirit/entity made before you started your working relationship together) will slide.
Contrary to what it might seem like according to social media (especially tiktok) spirit/entity work (especially deity work) is not that hard or overcomplicated. The only way it'll be hard is if you fight the spirit/entity on everything and don't want to do the work or face the tests. Having boundaries is good, but acting like a child and not wanting to do what you're told (as long as it's logical and it's in your ability to complete) is not going to make the working relationship any easier and it might end up making the spirit/entity leave because what's the point of them being there if you don't want to do the work?
When it comes to offerings and interactions it will depend on you and the spirit/entity itself, meaning while getting outside help is okay you cannot and shouldn't depend on outsiders when it comes to the relationship you have/want to build with the spirit/entity. Yes, you can find general resources and such on what a spirit/entity would like as an offering and you can ask other (reliable) practitioners on what kind of offerings a specific spirit/entity might like if you're just starting out.
However, it's also important to build your own relationship with the spirit/entity and figure out what works and what doesn't on your own (with the help of the spirit/entity of course) because one, what an offering a spirit/entity might like from one practitioner might be an offering the spirit/entity doesn't like or want to get from you and vice versa and two, like I mentioned while getting outside help is okay you cannot and shouldn't depend on outsiders for every single thing when it comes to your relationships and your practice in general.
With interactions, the basic idea is to be as respectful as you can be and make sure to address the spirit/entity by their proper formal title (if they have formal titles) like King, Queen, Marquis/Marquess, Duke, Prince etc and definitely don't call them lord or lady if they do have a formal title because even if you think it's respectful to some extent "lord/lady" hold little to no importance compared to most of spirits/entities' formal titles.
If you're not certain how to address a spirit/entity ask them. If ask them if you can address them by their formal title or if there is another way you can address them. Always ask the spirit/entity yourself what they'd prefer you call them by, while it's fine to ask for extra confirmation from a RELIABLE source, don't depend on others, especially not ones who insinuate it's okay to disrespect a spirit/entity's title (i.e. reffering to a Grand Marquis with something as insignificant as "Lord") when it comes things like these.
This is my own personal gnosis gathered through my own personal experience as well as research I've done. If you don't resonate with the below than that's okay, what's not cool is disrespecting me just because my experiences are different than yours