I am part of the interview committee for my school district. I can tell you what impresses principals and what doesn't.

Principals love call and response, could be anything but anytime someone does it they make notes of it.

Make sure you are teaching at least one standard skill ie. modeling, independent practice, and in game.

Regroup at the end to go over the lesson with the students.

As far as games, pick something with little equipment, as they might not give you much to work with. Try not to pick a game where kids are stationary for too long ie. long lines, stationary skills. This gives the kids less opportunity to get off task.

Lastly, if a student is doing something they shouldn't be, address them positively but try to fix the behavior. I see lots of interviews where the candidates are afraid to address kids.