I've seen Jeremy Renner in only three movies, but I have quizzed myself most, "Is Jeremy Renner Gay?" When asked he doesn't give a direct answer! The problem is that this is something he doesn't care to share.
It isn't the way he cares to have the conversation, and it is no ones business if he is or not! He is an actor, and where media, or fans dream he sleeps, accept his little bit of privacy and be polite enough to not pose the question!
It would, hopefully, not be a question your good sense would tell you to ask! If you enjoy an actor or actress compliment their work, thank them for their time, and leave them alone! If they're out alone definitely cut your questions out all together, and move along so they get their private time! Jeremy Renner is a good actor.