1. Ignore it all first; but if it persists, take him to a speech therapist.
2. Don't stop the child from talking. Encourage him to talk but don't force him.
3. Don't interrupt, correct or help him out by finishing his sentences for him . Don't tell him to start over again, to take it easy or take a deep breath.
4. Don't draw attention to his stutter by dropping everything to listen to him. He could continue to stutter as a means of getting attention.
5. On the other hand, don't turn away from him when he stutters.
6. And treat the child as normal. There is so much involved in a child learning to produce a sentence. He hasn't had the years of experience you've had in speaking.