You should make a plan according to your own situation. It is best to exercise with dumbbells, and the price is cheap. A pair of dumbbells 150 yuan. Pupils can accept deltoid lateral lift, which can make shoulders wider and more handsome. Bend down with one arm to lift the bell, exercise your biceps brachii and latissimus dorsi, and make yourself stronger. Exercise pectoralis major, teres major and sit-ups properly. But don't practice too much, 5~6 times a week. Every time you make your active muscles hot, you can say that you have successfully completed the task. After 2 months, your muscles will increase significantly, making you more outstanding among your classmates!