A Dinner Party

Riddle: Andy, his wife Emily, and their two children were invited to the dinner party. They traveled at their friends' house in a car. Andy ringed the doorbell and his friend let them in. Then his friend led them in the dining room where all the other friends are. Suddenly Andy forgot three things in the car: his wallet, his phone, and his car-key. Emily forgot her lipstick and her children forgot some plastic utensils. What is the first thing they all forgot?