00:34 You want to push the bag and strike it on the return. This will add momentum to the bag which in turn will force you to strike it harder.
00:55 Make sure to train left and right kicks.
Partner Bag Swings
Same concept but this time you're going to:
01:58 Have your partner push the bag at different speeds and distance.
02:40 Remember to do both legs.
Give these a try and comment below with your experience.