The corporeal equivalent of 'herd mentality'. The way in groups of people physically behave and copy the actions of others in the same way that herd mentality suggests a group of people who follow a consensus without thinking for themselves.
The herd physicality at sporting events, political rallies and religious gatherings makes them strong prospects for super-spreader events.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.