I remember one time I was at a resort walking through the pool and I heard some guy behind me make a comment to his friends, obviously think I was out of earshot, he says in a deep voice, " I like to do squats, and deadlifts,...." etc. Normally I would ignore it, but I was annoyed because all day people were just fucking staring at me. So I turned around and looked at him and his expression was like "Oh shit" and everybody in the group immediately looked away.
Usually when I go on vacation I notice people looking at me and at the beginning it's cool and I take it as a compliment. But by the end of the vacation it's annoying as hell lol.