Use all the technology including the remote mouse, the lavaliere mic.etc. Drill for skill. Set up everything ahead of time. That way you will have no surprises. Practice just as you intend to perform.
Perfect practice makes perfect.
Customize your presentation. Speak to your audience by name if you know their names. Double your volume and see how inflection and energy increase. A louder voice commands more attention and respect. Burn off nervous energy with vocal power.