Both teams are required to provide scorers for every match. One scorer operates the computer scoring system (or marks up the score sheet) and the other operates the scoreboard. Sometimes they swap at half time, sometimes not.
Usually, the Team Manager will issue a scoring roster for a parent of each player to score during the season. Mostly, this works out at a couple of times a season.
We all like to sit, watch and socialise at each game but it is important that you do your share in the scoring roster. Like many things scoring is easy, once someone shows you how! If you have not scored before, or are not confident, tell the Team Manager who will arrange for a more experienced scorer to sit with you. It is actually quite straight forward and usually you will have a grip on it within a couple of games.