watch those two videos, and compare how the Google man expresses himself, in the beginning of the first video (just the beginning) to how the other one does in the end of the second video (“ing key” part"). I find the two have really something in common, except one of them is just joking, and the other is not 
http://www.youtube.com/watch?gl=US&feature=player_embedded&v=v_UyVmITiYQ
http://www.youtube.com/watch?v=orAOrf-X42Y