This is the most common exercise for enlarging boobs. To perform this exercise, extend arms outwards to your side at the shoulder level. Make circles backwards and slowly for about one minute. Follow this with small forward circles for at least one minute. With a small motion range, pulse arms up and then down. Repeat this two times. To make the exercise more advanced, add some weight.
To perform the prayer pose exercise, keep arms extended while pressing palms together for at least 30 seconds. Bend elbows at 90 degrees and press the palms towards each other while stretching hands forward. Stretch hands forward with palms pressed to each other for at least 10 seconds before releasing. Repeat this for at least 15 times.