建议 needed!

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

if he protects 你 when someone says something mean about you

when he wants to do something with 你 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 你 feel and what you're going through. I really liked this guy and I didn't know how to tell him 或者 if he didn't like me back 或者 not. I kinda got my 老友记 to drop and few hints about me liking him then guess what happened the 下一个 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.
你 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 你 或者 pays 你 更多 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 你 should really tell him. :)
Anyways, good luck with it! (:
Let me know how it goes.