When I see people like that, I generally treat them like kids.
It is hard for me to, go figure, take them seriously.
You can act that way, sure, but don't expect people to really trust you with important things. That perhaps is not really a problem for you, but I am saying it anyways.
I don't mind a positive mood, but when there is stuff to do, it is time to work. I guess that is why there are people like you, so as to make up for people like me.