Some people like to practice their arms, and their arm strength is good. This is his most confident place. Push-ups are good. You can learn correct and regular push-ups in order to ask him for advice and practice push-ups with him. Just do your best, don't force it.
Those with good coordination skills will definitely jump rope. Some people like fancy, others like time race. You should know his preferences. The number of fancy rope skipping is mainly, and the time trial focuses on time, whether it is 1 minute or 2 minutes, etc. You can learn about observation first, and then deal with it easily.
If someone likes running, you can watch him keep pace, keep up and try to stay with him to show sincerity.