Everybody should know about some general and common good manner. So just have a look to this pic and learn good manners. You can enhance your talking and writing with these manners. If you want any grammatical help then you can take help from here.
For all the writers out there it can be difficult finding the perfect emotion for your character, whether your character is sad, angry, or surprised those words can seem to get a bit boring. so i introduce the Writer's Wheel of emotion. Enjoy - J.