need help with blindfold racer using the IPhone5s

HI all
I'm having a good time with blindfold racer, a game for the IPHone.
I enjoyed picking up all the prizes.
I play the game in practice mode on easy level.
I am now at level29.
What gesture do I need to use if I hear the wind sound?
I tried shaking the phone, tapping with 2 fingers and swiping in all directions but each time after hearing the wind sound for a couple of seconds the game ends and I am told: you did not make enough wind, restarting level.
I manage to use my car horn but I cannot make wind.
Many thanks for any help
Bfn
Nicol