It's good to practice at something so you get better.
Sally likes to play soccer, and the varsity team's tryouts are in a week.
Sally wants to try out for the soccer team.
Sally practices lots of different skills in the week before the tryouts.
Sally watches a lot of soccer on TV before the tryouts, but does not practice herself.
Sally's tryout goes well, and she easily makes the team.
Sally's soccer tryout does not go well, and she doesn't make the team.