Actually, sorry to be the grammar police, but in this case he would have said "¡Hazlo!". "Hágalo" is the formal phrase, and since he's Anakin's superior, older than him, and wants Anakin to see him as a close friend, he would for sure use the informal term.
Ah, I see. Well, I hope this isn't too personal, but why should you know about that? Because you use men's bathrooms or because you have a lot of guy friends?
If I understand correctly, it's when there aren't enough urinals open for you to put at least one urinal's distance between you and the next person, so you're standing uncomfortably close when you pee.
