A raffle prize from the lovely  Biviuuniek of my sona just hanging out.
(Artist's upload https://www.furaffinity.net/view/51820549/ )
Perhaps he just got his fur groomed and he's thanking his stylist for helping make his coat shiny.
Maybe he's offering his hand to ask a lovely lady for a dance?
Or more likely, they messed up his order at his favorite diner and he wants to make a complaint but doesn't want to bother the waitress.
I leave it up to you dear viewer.