There's a playful noise at that nip. Negan's not actually opposed to PDA when it's on the makeout end of things, but-- he's got to live with most of these fuckers, so it's probably better to not make it too weird.

Doesn't mean he's not giving a playful look, something with just the slightest hint of desire around the edges. "Oh, I am looking forward to getting to know more about you."