Two students having a conversation on the other side of a concrete wall, which has a common sitting are on the other side.
Two people are talking.
Two students are talking in a tree.
If it doesn't give a reproductive advantage it is pointless to consider it.
He kicks down the metal door
The woman is skateboarding in the city.
I've never been to the mountains.
Two guys are trying to get on the elevator.
A cyclists is changing a flat tire.