He is "Super attractive, thanks to his air of guarded self-consciousness"
He is attractive because he is self-conscious, but he trys not to be too self-conscious in his own mind.
Another example:
"After Italy scored the 4th penalty shot, there was an air of guarded optimism among the Italian fans in the stadium."
An atmosphere of cautious optimism... from the Italian fans.
Chris
http://www.hearseesay.com