Please tell me what I should say to him? He is so embarrassed.?

if you like him then tell him but when your about to tell him breath in and breath out then say"look D i know you like me and i'm ok with that because... i kinda like you too" then you can finish the conversation. but if you really like him and he likes you back and you want him to be your boyfriend you got to face your fears. because if wait too long he will move on so you have to tell him soon