How do you do a cash advance from a credit card?

Exactly how do you get a credit cards cash advance? I know you go to the ATM, but I don’t have a pin number to use.

I have a credit card mastercard from India how should I take money in usa or transfer money to different accou?

I need to pay to my friend 100 dollars , how should I take money from my mastercard, the stores ask me put my pin number I dont have a pin number, how to take money ? some one tell me please