What does prim grin mean?

What are the Good manners of a receptionist while on duty? How to write a half day leave letter for sick to office in mail? What are the topics of social graces? What is a female gentleman called? What does it mean when a British person says 'Best of British to you'? How do you address an envelope when husband and wife are both doctors? Is greetings singular or plural? Im an 18 year old boy and me and my 12 year old cousin are going on 2 hour ride walk trail is very muddy One of us will sit on the horse the other will walk Im more experienced rider who should ride? What do you call a person who points out other's flaws? What does it mean to be ladylike? How do rich people dress? Is an amiable person friendly? What is a definition for correct conduct? How much lamb for 15 people? What is a euphemism for overbearing? What type of irony is still clinging to your shirt? Where and why did the idiom playing with fire originate? How would you characterize the conversation between Jing-mei's mother and Auntie Lindo? What is the businessplace etiquette for burping? What are words that mean to treat royally?