I did not know how to greet fellow coach-sitter Mila Kunis. Nod? Handshake? Hug? Why would I hug someone whom my only connection is that we'll be sitting on a couch together for three minutes? If I set that precedent, them I'm going to be hugging every person I share any seating arrangement with: movie theater patrons, bus stop waiters. Plus, she's hot, so I didn't want to seem like I just wanted to hug her. That's when my brain came up with the half-hug. Very, very manly.