>>39699259Straight guy fitbro here.
Look, you can't help being who you are and what gets your prick at full mast--but more likely than not that dude is NOT gay.
So DO NOT assume he is and try to come onto him because that's the biggest freakout you can ask for.
As long as you're not creepy, look nasty or some other weird shit, be casual and just ask to work in with him or ask him for pointers.
You can compliment his physique and be friendly but not weird about it.
If the guy isn't a complete fucking moron and a brainlet, he will be nice to you too, pickup on the social cues, and be flattered but also respectful.
If not, and you acted fine, then he is a fucking neaderthal who just happened to learn how to lift heavy shit up and not shave. Congrats, he thinks you are a fucking cancerous piece of shit and he would punch you in the face if you even tapped him.