When my DD was 3 she went to a friend’s 3rd bday Tea party. Not necessarily a game but….
The mom asked a friend from work, who was much older, to come to the party and teach the girls old fashioned manners. She taught them how to cross their legs, fold their napkins, drink their tea, how to talk, etc! It was so cute and the girls giggled a lot but followed along.
The Mom didn’t do it herself because she thought her daughter wouldn’t have taken it serious but in retrospect, she would have done it herself when she saw how much fun they actually had =-)
They also decorated cupcakes.
Have fun!