He is using the 'force' to put the candle out. He's playing with the smoke trail. We set out candles in small votices for birthday blow outs. A show once convinced me not to put candles on the cake and have kids blowing their spitty germs all over it. The boys like the harder challenge of blowing the candles out when they have to get over the top of each one.
This was his big gift this year. 1200+ lego pieces. He has started it this weekend while watching the Green Lantern we borrowed from the library. If you know what day a new movie is released on DVD, call the library and ask to be put on hold for it. Hawk has been the first to get the movie from them about three times now.