This is a kimbab giving a thumbs up for Kimbobnara.
This characterization of kimchi is great! It's giving the thumbs up for a place called Kinchi Cook.
I think this is an unlicensed use of Mu Yong Hae, a salary man in a popular newspaper comic series called Mu Daeri. He's giving a thumbs up for a place called Sports Seoul, which is also the name of a newspaper.
This puppy is giving a thumbs up and a wink for Pet Drug House. The wink is also a common expression.
Ha ha, even grandma's part of the thumbs up club!
This poor goofy chicken of Apgujeong Dalkkochi doesn't even have any thumbs! I think it's trying to give a thumbs up so it can be like all the other trade characters. But it looks like it's giving a thumbs down. Or is it pointing?
Pointing is another common gesture these trade characters use. This ant is pointing up from the side of a Sein Design truck.
This sprite is pointing off into the horizon on a PC bang (internet room) sign.
I've got more trade characters that I'll post about on another day. Enjoy!