Your answer would be trade. Hope this helps!
Matt and Kim will meet one another at the movies I hope that it makes sense to you
The border line is a thin black line
Answer: This behaviour is an example of DEINDIVIDUATION.
Explanation: Deindividuation is a loosening of self-restraint when anonymous in a large crowd.
This behaviour makes an individual see himself as a crowd instead of an entity. This makes the individual do whatever the large crowd is involved in.