E.M.
You don't need activities, but if you wanted one a friend of mine had a great idea at her 1 year old's party. She made up a quiz for all the adults to take that included trivia about her little girl (i.e. what was her 1st word, what's her favorite toy, etc.). It was multiple choice and she passed out cards with "A," "B," "C," and "D" on them. The winner got a prize. It was fun and I ended up learning a lot about her daughter!