Really gay? okaywhat hapens when you hand a piece of steak almost in reach of a dog?
The dog can't help it, it salivates.
A gay man is going tomake a little more eye contact than usual and even if he is intending to be proper; he is going to check out your box(crotch)
first like I said a glance but if he notices that you are not about to bash him, the next look is to size up what you got packing.
Some gay men may lick their lips or even start rubbing their lips with their hands looking.
Not all gay men are the same just like not all straight men are the same, but in the end a guy wants to get his dick deep in the pussy, a gay man wants cock deep in his throat...