Still not sure which word to use? Choose a picture and take a look through the many choices! This graphic has excellent pictures to go with the information and I think that really help gets the point across. Anna comments: expansion of vocabulary
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.