For an opera singer, the only thing better than giving a great performance, is to be acknowledged by an appreciative audience. However, your applause needs to wait until the performer has finished singing. If in doubt, hold your applause until the people around you begin to clap. If you are extra enthusiastic about what you’ve just heard, feel free to shout “Bravo!” if the singer is a man, and “Brava!” for a lady. Of course, there is always applause at the end of each act and opportunities for curtain calls, stamping, whistling and standing ovations at the end of each opera. Go for it!