Talk to him more.

Talk to him more often, with clear pronunciation, slow speech speed and changeable intonation.

Talk to others more.

When there are children present, talk to others more and the atmosphere is relaxed.

Watch the video material with dialogue.

You can let him watch some video materials with dialogue, such as cartoons.

Simulated dialogue environment

Simulate a dialogue environment-even if he can't respond to you yet, talk to him more. You can give him a verbal answer before he can't speak at all. Children can understand you at an early age. Tell him more and give him more opportunities to get in touch with pronunciation. Soon he will be able to speak.

Cultivate listening interest

The best way to make children speak standard Mandarin well is to cultivate their interest in listening. CCTV news, drama, TV poetry and prose are the best teachers.