(n.) an expression of the mouth - a combination of a smirk and a smile - showing contentment, competence, restraint, and skepticism, all at the same time.
A Smize Man is someone whose to savage or someone who super smiles. This term can also be used as smize up, if someone was down you would use that term to cheer the man up or as a good day.
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"