The Yoko-wakare (Side separation) Waza consists of sliding both legs beneath the opponent and sharply twisting the body to perform a dynamic throw.
After first destabilizing Uke (Player receiving opponent's attack) in the backward direction, Tori (Player executing technique) induces Uke to attack. Then, at the moment Uke steps forward, Tori executes this Waza.
Just before Uke stepping foot makes contact with the floor, Tori uses his Hiki-te (Pulling hand) to pull Uke forward and destabilize him toward the front corner. Tori then slides his Tsurite (Lifting hand) side leg to the outer side of Uke Tsurite (Lifting hand) side leg, while at the same time continuing to pull Uke with his Hiki-te (Pulling hand) and twisting his body until it is sideways. Tori backward-falling posture further destabilizes Uke toward the front corner.
As Uke begins to topple, Tori slides his Hiki-te (Pulling hand) side leg in beside his other leg with knee slightly bent. While pulling Uke strongly downward with his Hiki-te (Pulling hand), Tori rotates in a circular motion centered on his extended leg to throw Uke. After the throw, Tori body is approximately at right angles with Uke body.