Should i tell my crush i like him ?

No. You should marry someone else and spend the rest of your life wondering "what if?".

You don't have to tell him. I think you should just try to strike up a conversation with him, and try to ask him out.

Guys like it when you are honest and direct. He might like you back.

Please tell me that you are talking about me. Cause it has been 2.5 months now that this girl look back at me when I look at her.

Vague af.

Tell him but keep it toned down. Or maybe warm into it a little. Make physical contact like hugging him goodbye when he leaves or putting your arm on his shoulder when he says something funny. He will get the hint.