To get bigger hands, you can do exercises that make your hands work hard, such as grip strengthening, boxing, martial arts, weight training, push-ups with fingers, and ball-squeezing. These exercises will make your hands more muscular and stronger, which will make them look bigger and more powerful. You can use a small ball, a tennis ball, or a soft stress ball for some of these exercises. You should practice these exercises every day or regularly to see results in a couple of months.

Here are some specific exercises you can try:
- **Grip strengthening**: Squeeze a hand gripper or other object for several repetitions.
- **Finger extensions**: Hold your fingers straight out and then curl them into a fist.
- **Finger curls**: Squeeze a hand gripper or other object for several repetitions.

You can also try regular hand-stretching exercises to improve flexibility, increase blood circulation, and promote muscle growth.

Remember that it takes time and effort to see results. You should practice these exercises every day or regularly to see results in a couple of months.

I hope this helps!