Instructions
Read as many trivia books as you can and as often as you can. They are filled with plenty of facts on everything from pop culture to geography to history. Some suggestions include "Ken Jennings's Trivia Almanac: 8,888 Questions in 365 Days", "15,003 Answers: The Ultimate Trivia Encyclopedia" by Stanley Newman and "The Complete Book of Presidential Trivia" by J. Lang. Read each book several times. These books contain a lot of information and you will not retain it all on the first read.
Practice playing trivia board games such as "Trivial Pursuit", "Outburst" and "Scene It?" The more you practice the better you will perform.
Watch as many trivia game shows as you can, such as "Jeopardy", "Hollywood Squares" and "Who Wants to be a Millionaire?" to get a feel for their style of, and approach to, gameplay.
Ask your friends and family to test your knowledge by asking you questions from your trivia books, or even random questions they think of themselves.
Think about the trivia you have learned frequently. This will keep the facts fresh in your mind.