The connotation of positive energy is probably: positivity, upwardness, sunshine, optimism, patriotism, party love and socialism.
Also, happy.
There are always people who remain expressionless all day long.
For example, the male protagonist.
There are always people who are happy all day long.
For example, Lin Yan.
System: hello? Your mission is to spread happiness and bring happiness to everyone around you, are you ready?
Lin Yan: I'm ready.
Lin Yan thought the male protagonist was an air conditioner.
It turns out that he is an obscure slut.
Male protagonist: It seems like I like the female protagonist?
Lin Yan: Isn't it?
Male protagonist: I won't be happy if you do this.
Lin Yan:......
Intention: Keep a good mood to welcome every day