Is tactful a good word or bad?

When there are multiple people do you use an apostrophe at the end? Why its difficult for you to obey? What is being tactful? What are the formal letter writing rules? What is called a man with good patience? What are some "good manners" rules that need to be abolished? Which dress can you not wear? What is the salutation for an Air Vice-Marshall? How do you write a letter of invitation for lunch? What are the rules for going to restaurants that require formal wear? Said the table to the chair...................kindly make a rhyming sentence? What are good manners in china? What is the literal meaning of the idiom 'put your best foot forward'? Do you tip movers? What does it mean when someone calls someone a doutche? What is the prepositional phrase in the sentence your mother was away at a convention? What is the proper salutation for Judge Mrs. Smith? What side does a ladies corsarge go on? What does Choose your socks by their color and your friends by their character Choosing your socks by their character makes no sense Choosing your friends by their color is unthinkable mean? Should I ask host if I may bring my spouse?