I was too lazy to translate the flow chart into text, so I had ChatGPT do it - it got pretty close.

BYU Basketball Fan Yelling Instructions

Follow these instructions to know what to yell during the game based on the action on the court:

• BYU shoots the ball:
  • Yell "B" when BYU shoots.
  • If the shot goes in, yell "Bop".
  • If the ball bounces off the rim:
    • If BYU gets the rebound:
      • Yell "I".
      • If the rebounder puts the ball back in himself, yell "D".
      • If the rebounder passes towards the 3-point line:
        • Yell "N".
        • As the shooter catches the ball, yell "G".
        • If the shot goes in, yell "BINGO".
        • If the shot misses, yell whichever swear word the cheerleaders hold up.
    • If the other team gets the rebound:
      • Yell a random letter held up by the cheerleaders.
      • This is important. The other team will wonder what the fans are trying to spell and will get distracted.