Instructions
Start with Paper if you are playing against someone with little experience. Inexperienced players, especially men, will first play Rock so your Paper will beat Rock. If your opponent is experienced, play Scissors as he may assume you will be playing Rock.
Watch your opponent's patterns. Players do not like to be predictable, so they will not throw the same sign more than two times in a row. If your opponent plays Rock twice, assume he will throw a Paper or Scissors next. If you throw a Scissors, you will win or at least tie.
Watch your opponent's hand as they are preparing to throw. If he is preparing to throw a Rock, all his fingers will be tense. If he is going to throw a Paper, his fingers will be loose and slightly open. If only the pointer and middle finger are loose, he may be planning to throw a Scissors.