You want to give the impression that you can maintain your composure and focus when the bar is busy. Be sure to include an example of how you prioritize your task during busy times.

"Sometimes the shift is stressful because we underestimated what the crowd would be drinking and didn't prepare properly. At the end of the night, I talk it over with the bartenders to avoid making the same mistake. When it becomes stressful during the shift, I stay calm and focus on the priority. Of course, priorities change when it gets that busy, but I focus on completing the important ones first."