1. The physical development of the 6-month-old baby 2. The dietary needs of the 6-month-old baby 3. The sleeping habits of the 6-month-old baby 4. The improvement of the activity ability of the 6-month-old baby 5. The language development of the 6-month-old baby 6. 6 Social abilities of 1-month-old babies 1. Physical development of 6-month-old babies At this stage, most babies can already sit up and start crawling. They will also begin to explore their surroundings and become interested in new things. Additionally, they will start trying to grasp things and can pick up small items on their own.