Squats can also be done with a water bottle in front of your chest. They especially train your thigh muscles.
1. Stand shoulder-width apart, toes pointing slightly outwards
2. Your back is straight, chest puffed out, and core tight
3. Push your knees forwards/outwards, and squat between your knees. Your hips are now in the lowest position below the knee joints
4. Push yourself straight up into the starting position
5. Fully extend your hips and knees