Peng is everything!
Ha ha, No seriously,
For instance use ghong kua(2nd level of push hands- using both arms to scoop apponents 2 arms from outside, via circular movement outward) while stepping in using kao(Shoulder strike) when opponent stumbles(hopefully fly) backwards use pluck by grabbing a leg while your in there. This causes him to flip over. A very uncomfortable posture...
Have fun practicing on your friends!
No seriously...
"If we dont worry then nothing shall worry us, only then shall we be of sound mind"