you should act appropriately at every performance. On the stage, you are musicians and actors at the same time, and you cannot disregard the audience. You play to the audience, it watches you, listens to you and analyzes you. It gives an opinion how you play, how you look like and what messages you send to it. You are on the stage to tell something to the audience. You speak to it by your movement, posture and glance. It observes and comments every grimace that you make and receives every music message that you send.
Bow slightly with a gentle smile. Bowing is a sign of gratitude to the audience. When the applause dies down, quietly move on to tuning the clarinet. And when you have done that calm down a little, relax and focus your attention on the beginning of the piece that you should play. Remind yourself for a moment of important tips and tempo. After that, turn to the accompanist and discretely nod your head to show that you are ready and start playing.
Note: While playing, never turn your back to the audience!
Public performance is done in six stages: 1. Coming to the stage 2. Bowing