IS THIS VIRGO GUY JUST TEASING ME, OR IS HE SHOWING INTEREST?

I have a Virgo male friend who teases me something awful in front of our other friends. He jokes about how I said wherever I am he can be and other similar "hooking up" like stuff. But the one thing I'm wondering, is what it means when he just stares at me face to face, smiling wide for longer than usual and gives me a very big hug? Supposedly he's gay, but he is giving me mixed signals like crazy. He pays alot of attention to me and seems to be reaching out more (he actually called me the night of a Christmas party we were to go to at a mutual friend's home which he doesn't usually do). It's driving me nuts. I'm very attracted to this guy, but I sure don't want to read too much into this. I just wanted to get a take on what might be going on? He has never told me he is gay and something tells me to keep my mouth shut and not ask. Any suggestions would be very helpful!!!! Thankyou in advance!