you pay for it...
u dont
You can't, plain & simple.
There are many ways But I do not know any sorry
In the game 21 Questions, coins are used to reveal who answered questions about you. There are two ways that you can collect coins: by playing the game or purchasing them.
Answer questions about other people.
If you wont to answer questions about your friends on Facebook, then you need to allow some apps. Here are some:"My friends secrets""21 questions" and"Social interview"
Their is no cheats for 21 questions I personally just do the offers (free ones) just so I can see the answers.
You go on the app 21 questions and answer the questions of your friends. Each question is worth 2 coins and the more you get of coins you can see who has answered the question about you. Hope this helped god bless a hipster lol Also follow me on tumblr please http://g-l-i-t-t-e-r-p-u-k-e.tumblr.com/
You can get apps to do this, such as; 21 questions, social interview, rate my friends, and my friends secrets.
Facebook does it?!?
No
you go to the main menu of friend quiz and click TAKE THE QUIZ answer the questions and each one gets you a coin