People fall very easily into one of 2 categories; Radiators and drains.
Drains, otherwise known as Dementors, slowly suck the life out of everyone around them, ruining days and spreading their joyless misery through whoever they can. Bad, selfish, unnecessary burdens.
Radiators, on the other hand, will walk into a room and radiate.
They will radiate energy, warmth and happiness with their positivity and enthusiasm.
Happiness is one of my favourite things.
So. Choose to radiate.