If you’re having a meeting, make sure you know the main points you need to get across.
If you need statistics or other data on hand, make sure you have it ready before your webcam chat starts, just as you would for an in-person meeting.
See what you can do to create a pleasant background with no mess and very few visual distractions.
* If you could have any superpower, what would it be and why? Trolling, flaming and all of that mean nasty stuff.
* What are you listening to (song are you playing)? I've never had to deal with that on any site of mine, thank God, but I've seen too many places turn to absolute garbage when "serious discussion" forums pop up.
Forum members get mad at each other for long periods of time, and can really ruin trying to keep a "friendly" feel to the place.
They should easily be able to help you decide if the background is okay, if the lighting is right and help you to look natural and at your best.
Knowing what you’re going to say takes you most of the way to a confident attitude and will certainly help to make a good impression.