(Laughter) So when that happens -- this works in Keynote, PowerPoint, it works in every program -- all you do is hit the letter B key, B for blackout, to black out the slide, make everybody look at you, and then when you're ready to go on, you hit B again, and if you're really on a roll, you can hit the W key for "whiteout," and you white out the slide, and then you can hit W again to un-blank it.
(Rialles) Quan això passa, amb el Keynote, el PowerPoint, i tots els programes, només cal prémer la B. B de &lt;i&gt;black&lt;/i&gt;, negre, i tothom et mirarà. Quan vulguis seguir, prems B de nou. I si en saps molt, pots prémer la W de &lt;i&gt;white&lt;/i&gt;, blanc, per posar-la en blanc i prémer W de nou per recuperar-la.