1. Play interactive games with your baby. For example, use toys or fingers to move in front of the baby to arouse their attention and curiosity.

2. Read to your baby. Choose books suitable for seven-month-old babies and read a few pages a day to help them develop their language ability and interest in reading.

3. Sing to the baby. Singing children's songs or simple songs can help babies learn pronunciation and rhythm.

4. Do simple manual activities for the baby. For example, use brightly colored paper to cut out patterns of different shapes for the baby to touch and explore.

5. Take the baby to outdoor activities. In the park or outdoor space, let the baby feel the sunshine, wind and natural breath, exercise at the same time, and promote sensory development.

6. Provide a safe environment for your baby. Ensure that the baby's toys, books and other items are safe and will not cause harm to the baby.

7. Establish a stable law of daily life. Setting a fixed schedule for your baby, including diet, sleep and exercise time, is helpful for your baby's healthy growth and development.