I also think he could be used as a salesman in a store, like a "Gentleman salesman." Perhaps having movements related to that would be interesting:
- pointing to a store. When you interact with him and open the menu, he keeps pointing to that menu.
- He could also make faces. Did you buy a discounted item? He gets super happy. But did you buy a more expensive item than usual? He falls to the ground sadly.
- You clicked to buy an item and don't have any money? He puts his hand in his pocket and sees that you don't have any money. He puts his hand to his face and gets sad.
- You opened the store and got a free item. He gets fascinated!
- When closing the store, he thanks you by waving his little hand! You could even create two types: if you bought an item and if you left without buying anything.
- You could create one asking you to buy again.