We can run, do push-ups and play basketball!
Running can exercise leg muscles and increase the explosive force and flexibility of leg muscles!
Push-ups can exercise upper limb strength. Increase the muscle content of pectoral muscle and deltoid muscle!
Playing basketball can exercise the muscles of the whole body, especially the coordination between abdominal muscles and whole body muscles.
This is my experience!
Never been to the gym, but muscles are recognized by friends!
Also, you must supplement nutrition while exercising muscles!
I hope you can succeed!
Hehe, believe in yourself!