Unless they are around a bunch of homophobic people. ^^
Homophobia is instilled in the minds of young people because homosexuality is "morally" wrong. I would conclude that most homosexuals are quiet about their sexual preferance in attempt to avoid ridicule.
I dont think homophobia really exists...people just call the disagreement homophobia.
Also, I think I might agree that alot or even most gays are quiet about their orientation...they aren't the ones "stirring up trouble" tho. The overly flamboyant(?) ones that have more mood swings than a pregnant woman with hot flashes on her period (yes, I know, not possible, but still).