What to look for?

[Nikolai]

Okay, so I am still curious and unsure of my sexuality. I'm still on a journey. So here is my question. The term "gaydar" is out there. But if I were ever to become attracted to another guy, how would I know his sexuality? I know that may seem like a stupid question :redface: but I don't want to act in a way (like flirting whatev) and then make a huge ass of myself and feel horrible to find that he is straight or however that may be interpreted...