Make an entrance
Add an element of timeliness.
Make sure your lighting, spacing, and sound are okay
Watch people's faces to make sure they are paying attention
Hamburger Method: Tell them what you're going to tell them, tell them, tell them what you told them
Bribe your Audience: Promise to show them a cat video at the end of the call
Be interactive: Call on specific people to avoid confusion
Use your hands
Use Comic Sans--- just kidding. But lying does keep your audience on their toes.
Take a live poll
Have a celebrity make a cameo
Use live demonstrations
Use special skills you may have
Keep your promises