This is a great question, we appreciate you asking. Emphasizing a focus on the Performer above everything else is the most effective way to create a listening atmosphere at a show, which means that while the Performer is performing, they have the full attention of the audience and participants. Have the Performer perform in a central location in the space, and consider getting up there in front of the audience to introduce both yourself as the Host as well as the Performer, and simply ask for everyone’s attention. This is a great way to ensure an audience starts off captivated. Sometimes you may have to gently remind talkative attendees to please be respectful, and/or provide an alternative space for them to socialize. You could also consider having an intermission between sets which will allow people a moment to fill their drink and go to the restroom, and hopefully avoid any of those disruptions during the performance.