Fitness: How to exercise the chest muscle thickness by hand? I am a young man and have no money to buy dumbbells! I am thin. I have been exercising at home with my bare hands for several months, but I am still very thin. ... Practicing at home is definitely not as effective as practicing in the gym. After all, there is no equipment. Push-ups should be good. My brother used to practice in the gym, but now he is working. He had no time to go, so he practiced at home. It's best to watch videos or something, learn methods, and then keep exercising by yourself. Over time, it will always work.