Longest time you can play the wonderful game of Contact: at least 1 hour, 30 minutes. The cool thing about Contact is that it gets more fun as more people join in and you get more clues. Essentially, a long Contact game sustains itself since the more you play, the more attention you attract (from hot women). Also, it’s innately fun to the see the initial confusion everybody undergoes learning the basics of the game. There should be a competition to see who can teach somebody new the wonderful game of Contact the fastest. My entry would be 2 minutes.