I have a love of awkward moments, you know when you have to share a lift with one other person, and you can see the squirming, both people want to talk so they don't appear rude , but neither wants to come out with the cliched, 'nice weather today'.
The other classic is walking along a long corridor, someone is coming out of their office, but if they continue both of you will be walking together, so they double back and pretend to pick something up.
There is a Dilbert cartoon where this happens, Dilbert and this other worker end up side by side, both see a piece of paper on the ground, both see this as their escape and stoop down together to pick the paper up, making the awkward moment even worse.