Teams decide who goes first through a "eyes" challenge where one player from each team attempts to make eye contact while simultaneously throwing their ball into a cup; The team that makes the shot first gets the first turn
Why people argue about this
People often assume that whoever makes their shot first in the "eyes" challenge automatically gets to go first in the game, but actually, it's who misses their shot first who starts the game; they get to choose whether they want to go first or second. The confusion arises because the official rule doesn't explicitly state this detail, leading many players to interpret it differently.