Need the name of an Old movie. Anyone know the name from this seen

OLD MOVIE. In this seen , as a joke one after the other a bunch of boys visit a local girl with the same script of things to say, wherein each boy already their comments/repeat in order on each of things of the newest boy says until the girl passes out trying to follow along. They do this each day till one smart girl stops the first boy (lead boy) and calls outside to the other boys waiting to come in, telling them "that they can come in one at a time or ALL come in now for cookies and drinks." Later on in the movie the Head boy again seems this smart girl at the bottom of the steps of his family's beach house and trips down the steps after trying to show to everyone that he is now a sophisticated young man after being away at school. IF YOU KNOW THE NAME OF THIS MOVIE PLEASE LET ME KNOW, it has been bugging me for days and I can't think or find it online... Thank you for your time..