Maybe you can use teamviewer tool.
You have to install the Android part (https://play.google.com/store/apps/details?id=com.teamviewer.teamviewer.market.mobile) and the desktop/laptop part (www.teamviewer.com). Then your computer have to be connected to a videoprojector or somethink like that.

TeamViewer is free for non-office use and prety smart.

Cheer

Thomas