(A.N: I'm in love with the idea of Thor losing control of his powers a little bit with his emotions, so I thought I'd put some of my thoughts down for y'all 🔨⚡)
Thor's always felt things...strongly. at least in comparison to Midgardians. He laughs loudly, he cries loudly, and generally is an open book. Of course, there are a few things he keeps under wraps- being trained for ruling a nation taught him that- but mostly with his friends he's open.
That being said, his powers do tend to fluctuate in regards to his emotions. This leading the team to coming up with increasingly insane solutions to deal with this.
It's always fairly obvious if Thor's watched a sad movie, because it'll immediately start raining outside.
There's a running joke around the team that meteorologists hate Thor because of how much he messes with weather patterns
He gets a mug out of this, though. Drinks from that "the weatherman is my nemesis" cup every damn day
Happiness and excitement is tied in with it as well- little sparks flying from his hands when he tells stories or talks about something he's passionate about
When he spent his first valentine's Day on earth with Bruce, Tony made sure to back up all his online files. Just in case
After a particular incident, Thor always tries to keep these light shows under wraps, and eventually takes to carrying a miniature lightning rod with him.
Camouflaging it into his outfits is a little bit difficult- he puts it in his hair, pockets, attaches it to his belt
"Hey Thor, cool necklace!"
"Thanks, it's a lightning rod attached to a piece of string."
On the day that Bruce proposed, Pepper found Tony sprinting around his lab at 3 in the morning, powering up every backup generator he had
"what the hell are you doing"
"BRUCE IS PROPOSING TODAY"
"AND THORS DEFINITELY GOING TO CRY"
"well, it is a marriage proposal, that tends to happen"
"I HAVE LIKE 50 ONGOING EXPERIMENTS THAT I HAVENT SAVED"
But, Thor does always like to help out his friends with his powers when he can, from conjuring rain ambience to help them sleep to high fiving Tony mid battle in order to power up his suit
He also likes to conjure rain when he makes a Dramatic Return™ but that's just for the atmosphere
"you can't just change the weather predictions because you want to recreate that scene from the notebook"
"listen, you don't have all the facts"
