~Chaos' greeting toward everyone
Chaos is one of the Seven Secrets that rules over the dominion of chaos, he is the exact opposite to Order, who constantly gets annoyed by his crazy, spastic personality; in a sense, considering Chaos to be more of a nuisense than anything else.
Chaos has been known to do the craziest of things, appearing wherever there is strife or problems, seemingly, he acts like he would add to the destruction and excitement; but on a larger scale, he's just holding up his realm, so Order does not over-power the Chaos within the multiverse. Chaos' spasmodic nature has caused some troubles in the past, and as such, is normally kept within the Castle of the Secrets, just so that the nothing goes horribly awry once again.
Chaos, obviously in the statements made above, is an insane, crazy, erratic, hyperactive, impractical, bizarre, wild, psycho who runs around doing almost anything he can for practically no reason whatsoever. He has been known to pop up in front of people and screaming "HELLO!!" in their face, and just to add to that, he tends to annoy the hell out of anyone he's near (Sadly, Order has to deal with him all the time), as such, he lives up to his name as the Secret of Chaos.