You busy? vs. Are you busy?
Good question! People sometimes say "you busy?" to mean "Are you busy?" in spoken English, sometimes a few words are shortened/omitted to get one's meaning across faster! Here are a few examples (we call them "contractions"): wouldn't (would + not) can't (can + not) haven't (have + not) should've (should + have) she's (she + is) he'd (he + would) gonna (going + to) lemme (let + me) kinda (kind + of) dunno (don't +…