I am very shy and haven't asked anyone out yet. How do I do it? What do I ask him out to? What do I do with him?
Start out with flirting. Be funny and playful and make a lot of eye contact. Clearly communicate you're interested. If he seems interested back, ask him to go get a drink or coffee, or just to hang out. "Wanna come over and play PS4 sometime?" or something...