movies scenes about social situations

Hi everybody,



I'm looking for specific movies scenes to help a person deal with real life situations.



I have a short list of situations and turn to you since I know the situations are really casual and can be found in many movies, but I don't have time to watch entire movies and no ideas that come to mind easily... So I hope you could help me.



Here are the types of scenes:



- a scene where a person eats alone in a restaurant or school cafeteria.



- a scene where a person enters a room where a lot of people are already sitted.



- a scene where a person (preferably a woman) is talking in a meeting.