If you have weak voice projection, it can be frustrating for your audience, and you quickly lose their interest. If you are unable to project sufficiently, use a microphone if available. You can also record your presentation and mime to your recording: however this takes much practice. You should be watching your puppet most of the time, and this may help you to project your voice forward. Try not to become distracted and be looking somewhere else when you speak. You need to speak up louder if you are working behind a wall or puppet theatre. Always ask somebody who was in the audience, preferably someone near the back, if they were able to hear the presentation properly. This may need to be organised with someone you know beforehand, getting them to do a sound check.