If you want to have big pectoral muscles quickly, it is very important to do exercise while exercising. First of all, the action I recommend to you is arm bending, which is a very comprehensive action and has great benefits. It can promote the growth of triceps brachii while exercising your chest muscles. Most importantly, it is very simple to do this action, and the equipment required is not very complicated. You can exercise without going to the gym. However, when doing arm flexion, the movements must be standard, or you can't grow chest muscles by doing a lot of movements.
Then there is another way for bodybuilders to increase their chest muscles, that is, bench press. It is very demanding to do this action, because it is difficult for many people to maintain the standard of action while carrying loads.
In addition to doing these fitness exercises, fitness friends should also control their diet, because a high-calorie diet will make your fitness effect completely lost and futile. So we must restrain ourselves and be self-disciplined. Even if you don't have a good figure now, as long as you persist for a long time, I believe you will soon see the effect on you, and you will soon become a "naked man".