1. Teach them to listen carefully to others.
2. Teach them to start their talk only after others have finished talking.
3. Explain them that by maintaining eye contact with others, full attention remains focused on their words and the mind does not wander.
4. Explain them that speaking your words politely creates your positive image in the minds of others.
5. Due to this, others also listen and pay attention to your words seriously, and even difficult tasks get easily done.
6. Teach them the skill of speaking their thoughts in the least amount of words.
7. Give them good books to read and encourage talking about them.
8. Always talk in front of them in a good tone and simple words.
9. Pay attention to the way they interact.
10. Interrupt them immediately if they use wrong accent or indecent words.