[header] How to be posh [title] Display good manners. [step] Posh people have good manners and know the boundaries in human relations. Always say " please " and " thank you " when the situation calls for it. 
Say " excuse me, " greet people politely, and display good table manners-such as chewing with your mouth closed. [substeps] Also do not use your phone at the table or when talking to someone.