Gay Winks How Can I Tell If This Guy In My Class Is Gay Or Bi And Is Intrested ?

How can I tell if this guy in my class is gay or bi and Is intrested ? - gay winks

So this guy in my class (I am bi btw-type) which seem to be bi or gay. Acts completely straight, but always asks my name in the class and
He winks. Now I am in the tenth class. I am relatively new
For this school, so I can not tell you if you interested to deceive or round. I also see a lot in class, when I look back and
Calls to give my book a lot. Advice for skul tomorow?