Gay places are not only for gays, sure you can go! Just some placese are more to look for "fun", you may avoid those if you are not going that way.
You may try Community in Central, it's a small bar (cafe in the afternnon? no sure)located just off LKF on G/F, always mixed straight and gay crowd.
Further comment for the above answer:
Dont worry, gay men/ straight men are the same, just they look for other men instead of women; some are more horny and direct, some are shy. When you go to a straight bar, you dont rape a woman or you dont touch every one you like right? Then why some ppl would think gay guys would attack straight guys? Actually