Before beginning a user research study or usability test, one of the most important things you can do is to run a pilot test. What’s a pilot test? It’s a rehearsal of the study with someone standing in as the participant. You run the session as if it was with a real participant, but you throw away the data. The purpose is to see if there are any problems with your technique and also to get some practice with the procedures involved. Afterwards, you can make changes to your technique and discussion guide.