I've definitely done things like that... the busying action at least, I've never really been one for waving myself
A lot of what he said was quite familiar because I've read his Manwatching/Peoplewatching book - I do agree with you, with this sort of thing you've always got to be careful of generalising actions across the board, something which happened once or twice.
But yes - interesting stuff! It's a shame a lot of the programmes nowadays on this matter aren't as illustrative as this.