Everybody has a personal bubble,
Their own little personal space.

If somebody wants space,
Give. Them. Space.

You don't wanna make their mood worse by annoying them or so.
I get that we all wanna be there for those who want to be alone and I guess I can say that's fine but sometimes we gotta tell the mood of others who mean it seriously.

Plus can some people just knock or something?
It's annoying to just have people barge in a room where you just want space plus sometimes they won't even close the door on the way out.

Plus if someone doesn't like physical interaction,
Please don't hug them out of nowhere unless your an exception to them.~

Everyone needs their space every once in a while.