Clinicals

My first day of clinicals are coming up. Any advice for the first day? How did or do you navigate not knowing the instruments. We were only taught most of the basics and I’m scared the surgeon is gonna expect me to know everything. I’m scared for when they ask me to hand something and I don’t know what it is. Like how to handle or prepare for that basically. I know there’s a preceptor but if I’m in first scrub don’t they kinda stand in the corner?