Know the details
Confirm the venue, arrival time, suitable boots and required documents. Pack your kit and water in advance. If anything is unclear, contact the team before the day.
Keep your preparation familiar
Use your normal routine and discuss preparation with your coach. A trial is a chance to show the player you are; avoid trying unfamiliar approaches at the last minute.
Be a good teammate
Listen, communicate clearly and respond constructively when a passage of play does not go well. The next action gives you another opportunity to contribute.
Make the experience useful
Afterwards, write down what went well and what you want to improve. Keep your application reference and follow the team's instructions for updates.