Yo, forreal, there's nothing I hate more at the gym, than watching someone workout with someone else. And obviously one has a bit more experience than the other and they're "training" them, but letting them fuck up their form. The number one way to hurt yourself while working out is having poor form. One way ticket to snap city, express train, no stops.
Moral of the story kids: don't go to the gym with no herb person that barely knows what they're doing themselves. Research shit for yourself, maybe start at home. That way, when you actually get to the gym, you have an idea of what to do. Trust me, it'll help. Talk to a certified trainer if you have to. Don't let your friends make you hurt yourself.