You Need at least Five People, and a log maybe or chairs.
2 people to be the dating boy and girl
3 to be extras..
The couple is going to a movie and they are buying popcorn and pop and stuff and hurrying to their movie (they're running late).
When they get to theater, the only two seats are apart from each other.. So sit on opposite ends of the 3 folks already there.
The boy has the pop and the girl has the popcorn. The Boy asks the person next to him to ask her for the popcorn. They do it and she passes the popcorn. As it is coming back from the boy everyone gets some popcorn and then when it gets to the boy there is not more.. (Repeat with pop).