Should I like his photo too?

[Savannah;]

So ive had a huge crush on this guy from my school. We've only talked 3 or 4 times and I know you're probably thinking "what the hell...." But ugh. He's amazing. I met him at my schools football game, and my good friend Tyler knew him so I asked him about the guy I've been crushing on. But thing is, whenever I'm in the halls talking to Tyler and my crush walks by Tyler would yell out "savannah thinks you're hot" or "this girl likes you" and he'd just look at me an smile. Also, by mistake, this one time when my bestfriend and I walk past him, my bestfriend gave me the look and I gave her the look, and when we thought he was gone we did the gitty "omg he looked at me" scream. And he heard. I wanna talk to him, but im just to embarrassed! ... He added me on Facebook yesterday, and liked my photo. I was so happy omg. but Should i go and like his photo? Cuz it would be kinda funny. And he'd get the notification, and maybe he'll message me? What do you think? What should I do?