What it mean when you call someone a twerp?

Why do eastern people wipe themselves with their hand? Why is rolling your eyes considered rude? Why do guys sit with their legs open? What does being called mousy mean? How would you say 'stop it' in french? How do you write a get to know type letter? When I talk to people I sometimes try to be funny and cross the line and say something nasty how can I stop doing this? Who thinks Dress codes are a bad thing? What to write in a goodbye letter? How do you be a disciplined person? What is the Proper way to address envelope to grandma? Why is personal presentation and behavior important in maintaining health and safety in the workplace? What is a big fuss? How do you address strangers? Whom are remarks for? What is a good sentence with the word impeccably? Is chaperon is a masculine or feminine? What is in mourning it is better to be sincere than to be punctilious? Do a black tie go with khakis? What comparitive and superlative form of friendly?