To signal an offside or foul to the refs assistant or ref himself.It is not anything written in stone,but a behavior that has developed over the years throughout soccer.
because when they call out they raise there hands to get the player with the balls attention
Some players can use their hands in soccer, like the goalkeeper or players taking throw-ins.
because is isn't rugby
no that is false
They are usually defenders and are appealing to the assistant referee to awarded them with an indirect free kick. They believe the attacker was guilty of an offside infraction.
Soccer was and is creative because unlike most sports, most players don't use their hands (excluding the goalie)
in volleyball you use your hands, and in soccer you use your feet, with the exception of the goalie. Also in volleyball, you play on a smaller court, with 6-8 players, in soccer you can have i believe up to 12 or 14 players on the field.
catching the soccer ball because forfield players they aren't aloud to use their hands and arms, so yeah the skill they use that other players don't use is catching the soccer ball.
There are thousands of soccer players.
some soccer players are called professional soccer players
Soccer players
soccer players because they have a bigger field