bounce out

on the serve if your toss is in front of you you will land inside the court on the follow through — you then need to bounce out past the baseline to prepare for the returned shot

hug the finish

on the serve follow through — you want to bring the hitting hand to the opposite pocket– hug yourself by rotating your hips and shoulders

side 4

Thiem makes a side 4 with his tossing hand– elbow is facing the side– thumb to the sky — rest of figures make a tight 4

yanking

Yanking is hitting a topspin shot without the body rotation and you follow through on the start side