Push hands
Push hands is the common english translation of the term Tui Sao. Tui Sao is the partner practice used in many Kung Fu systems to integrate a student's solo practice though partner work based on touch and feel.
In I Liq Chuan we often call this practice spinning hands. We train our students in a variety of Tui Sao methods from Chi Sao, akin to the martial art of Wing Chun through to the more Tai Chi style of pushing hands.