things people have took me I'm gay for:

reading
cooking
cleaning
being decently dressed (not even well-dressed)
having skin care products
using conditioner on my hair
driving a sedan/compact car
playing nintendo or jrpg games
enjoying classic music/opera/theater/ art & foreign films owning a cat
drinking cocktails/lattes/milkshakes
riding/racing bicycles
not playing team ballsports

the definition of straight man is very very narrow for some folks, basically drive a giant truck, be unable to take care of yourself, and be into sports and action pop cuture, rock and roll/rap, and only ever do 'basic' things.

if you do anything outside of the box, you're gay. because 'normal straight men' don't do those things, and if they do, they only do it to impress women or something. like I can go to the opera with my girlfriend and hate it, but if i go myself and enjoy it I'm gay.