WHAT SHOULD I DO? MAKE A MOVE? MESSAGE HIM FIRST? OR LET HIM GO?

There is this guy whom I have a crush on. Even though we were in the same Whats app group for a drama last month, I only saved his no this Valentine's day. But it seems that he has already saved my no, as he saw my status the very next sec I saved his no. He is a friendly person, but behaves like I'm invisible whenever I am nearby, like he doesn't even make an eye contact !! So I didn't really expected him to save my number, and also when we are not even in the same friends group or have talked to each other. Our classes are ending this week, and he's graduating. Should I make a move?
PS: His friends have become more friendly towards me.
WHAT SHOULD I DO? MAKE A MOVE? MESSAGE HIM FIRST? OR LET HIM GO?
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