The baby in the third month may not be able to pull the wire by himself, but you can buy some toys with pulling wires, preferably toys that move or make noise when pulling wires. At the beginning of training, the mother can put the thread in the baby's hand and help the baby pull it. The activity or noise of toys will stimulate the baby's interest. After many trainings, the baby can play by himself.
The hanging method is to hang some colorful soft plastic animals or other things on the top of the baby's crib. Shake the hanger first to attract the baby's attention, then hold the baby's hand to help him (her) grasp, and slowly induce the baby to reach out and grasp. It is also possible that the mother or father deliberately put the toy tied with a rope in the baby's hand, and then suddenly lifted the toy when the baby didn't hold it firmly, so as to stimulate the baby's interest. After several stimuli, the baby will take the initiative to wave his little hand to catch it.
Catch the ball This is a training method that kills two birds with one stone. Not only can you train your baby's grip strength, but you can also train your baby's eyes to pursue vision. When training, let the baby lie down first, and then slowly roll a colored ball from where the baby can catch it. At the beginning, the ball rolls from side to side, and the baby will concentrate on it. After several repetitions, the baby will soon reach for the ball.