http://www.youtube.com/watch?v=ZsjgM0b385g at 1:22 is it like a pinch harmonic?
He just strums the strings behind the nut and lets them all ring out. It's pretty easy to do
yeah, hes strumming behind the nut. this really works best in strat/tele type necks because the strings are able to ring through a lot easier than on necks with angled headstocks