advanced power point ninja
A useful little power point ninja tip i picked up the other week.
If during your presentation you want to pause for a bit of discussion or you want to talk for a bit without any picture or words distracting the audience, and keep them focussed on you just hit the B character on the keyboard. This turns the screen black. When you want to start again hit B and, bingo, back comes the picture.
This also helps you assert a bit of authority on the room. While the screen is black they can talk but bring back the picture is the cue for the audience to shut up again and listen.
W also works, it turns the screen white.
If the presso is going really well and you want to start a party, B and W in quick succession will give you a cheap and dirty strobe effect.