Super Bowl Sunday: The time of year when family and friends gather around the TV and celebrate the glorious game that is football. For the uninitiated, it's a lot to take in, especially if it's the only day of the year you watch sports.
One of the hardest things to understand are the referees. In-between plays, they're always gesticulating about like they're attempting to do the robot. They do so many hand signals, it's easy to miss some of their more bizarre ones.
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Don't worry, you're not the only one. To help, we've made up what they probably mean with SB Nation's GIFs below. Though if you want more technical terms, you can check out a more thorough breakdown.