1. A method, comprising: detecting contact points corresponding to at least a thumb, an index finger and a middle finger of a hand on a multi-touch device; computing a reference point from the contact points; connecting the contact points to the reference point; calculating spanning angles between the contact points utilizing the reference point as a vertex; associating fingers with the contact points based on the spanning angles and distances between contact points; and determining whether the hand is a left hand or a right hand.