Reaching Out For Ideas [please comment]

I’m going to be taking photos for my Black & White photography class (really? photos?) and I’m brainstorming on an idea and figured I’d reach out to my social network people to get your feedback.

I’m trying to take photographs of actions that require two people to do them but there will only be one person doing the action. It’s meaning is to convey a sense of loneliness and or longing for someone to do that action with.

I’m trying to think of what actions can I photograph? That’s where you all come in. Leave me a comment telling me what you think could be a good idea for an action that requires two persons. I have some ideas but would like to have as many as possible so I’ll have some backups.