Advice needed!

if he secretly looks away from you when you looks his way (it means he looked at you :P)

if he protects you when someone says something mean about you

when he wants to do something with you and then I mean not with a group of friends!

Okay, seriously now I have 3 words for you: go for it! I know it feels like "Omg. It's so scary, what if he doesn't like me back?"
I felt the exact say way before...so, I know how you feel and what you're going through. I really liked this guy and I didn't know how to tell him or if he didn't like me back or not. I kinda got my friends to drop and few hints about me liking him then guess what happened the next day? He asked me out! I couldn't believe it because I swear I was like 100% certain that he didn't like me back. But, I went for it and he suprised me.
You really shouldn't be scared and hold back because there is nothing worse than hiding in your feelings. :/ You'll always be wondering...what if...
So, go for it. :)
The boy I liked used to look at me when I wasn't looking and then when I turned around he looked away. That's a big sign, watch out for that. :P
Maybe if he sticks up for you or pays you more attention?
Compliments are ALWAYS a big sign too. :]
Well, sorry if I didn't help at all! I hope it all goes well and I still think you should really tell him. :)
Anyways, good luck with it! (:
Let me know how it goes.