It’s well known that this gesture is used by Rock music fans, but it may also have another meaning. Which one?
See here what other people have answered:
- A sign to tell the others that they are in a hurry
- A sign that people make to tell others that someone has cheated on them
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Interesting fact:
Do you know what the proxemics studies? And the kinesics? The first one is the study of the space used in social interactions and the second one, is the discipline that studies our body communication. These sciences are used by psychologists, linguists, philosophers, anthropologists, … to understand better how we, the humans, interact.