Two dancers exchange places with each other. General rule: Any two directed dancers exchange places by walking forward in a semi-circle ending in the other dancer's starting position. Each trading dancer has reversed his original facing direction. If the trading dancers start while facing in the same direction, they pass right shoulders when they meet per the right shoulder passing rule.
Couple, mini wave.
Static square, partner 4 steps.
When doing a partner trade, use inside hands to exert slight pressure to assist each other in trading.