Sometimes it's better to get to know them than to assume that they are gay. It does differ. If he isn't, continue on. Also, don't pressure him to tell you. Physical intimacy is as important as shelter, warmth and food.
Stigma Removal Unit.
Sign up for the Thought Catalog Weekly and get the best stories from the week to your inbox every Friday. My therapist,a Female,thought this was odd and sided with Her. Watch for secretive, ashamed, or embarrassed behavior.
Once in high school, whatever… once when I was 19 working at a hardware store by like a 50 year old gay dude.