To elevate one's arm and then post it against a wall while somewhat cornering an unsuspecting female, this is usually followed by light conversation and unsuccessful mojo.
Something you say during an awkward pause in conversation in attempt to start conversation. However this will just make the conversation more awkward and draw attention to the pause.
When what starts out as a simple hobby ends up controllingyour life and leads to perhaps divorce or severely impaired ability to communicate. For example, Minecraft. Or having a pedigree dog.