Every day, we use words to talk to family and friends. Simple words can change how a person feels. When someone has a bad day, a kind word can make them smile. We say "Thank you" and "Well done" to show we care.
But words can also be dangerous. When we feel angry, we sometimes speak too fast. We use harsh words. A broken window is easy to repair, but sad feelings are difficult to fix.
A good rule to remember is: Think before you speak. If you say something wrong, you must apologise quickly. Say "I am sorry" to make things better.