P: Biographies of great men can also help us in learning good manners.
Q: Courtesy and politeness is the key to good manners.
R: No doubt these are lithe words but if they are spoken at the right moment and in a soft and sweet voice, they are bound to work wonders.
S: The use of polite words like "Sorry", "Please", "Thank you", "Beg your pardon", "Sir" etc. creates a healthy impact on the minds of others.