He's giving her a kiss - right on her cheek. Because that's what he does...he loves to give kisses. And he LOVES this dog.
Anabelle is the the most gentle and kind dog. I can't think of a better way to describe her to you. She's just hands down, the best dog ever. She puts up with a lot from Quint - and he squeals with delight when she's in the room with him. It's re-dic-u-lous-ly cute.