never noticed by other guys!

[Jay]

Just a thought, perhaps some guys do notice you but think you are straight? Perhaps they would rather not flirt with someone just on the off chance that they might be straight?

If you want to remain in the closet for now, but still want guys to know you are gay, then all I can suggest is frequenting gay venues where your friends and neighbours won't be there (both real-life and internet venues).

I agree with Fred. I think some guys do eye on you but they do not dare to take further action as they think you are straight. You don't need to wear pink or rainbow t-shirt to tell the world that you are gay. Just visit gay friendly venues like Fred and Marshlander suggested.