Nose over your front toe.

Increasing spin on a chipshot requires a couple of very simple things. First it helps to play with a softer golf ball and a sandwedge that is less than 30 years old. Professional golfers typically change out their wedges every three months, the average golfer changes his wedges out every century. From a technique standpoint ensure that your nose is over your Front foot this will ensure a descending angle of attack and nice spin.