To experience life for the first time

Pure excitement and smiles that encompass the whole body... Excitement that can't be contained (hence the squeals that accompany them). That's what it is to be a child who doesn't know the difference between being cool and not. 

My son also vibrates with excitement too.  He'll do a little shake with his arms and hands and he'll even squat like he doesn't know if he should sit or stand. Makes me realize that society and just maturing forces us to lose that abandonment and wonderment that children are born with. 

Cheerio: pure joy and excitement that children experience that as a parent you have to smile and encourage. 

Personal challenge: to try to look at the world like a child goes and get back to experiencing the here and now.