english: (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.
non_english: (Smeh) Kada se to desi, ovo radi  u programima Keynote, Powerpoint, radi u svakom programu, samo pritisnete taster B, B za "blackout" (pomračenje), da zamračite slajd i učinite da svi gledaju u vas i onda  kada ste spremni da nastavite ponovo pritisnete B i ako ste stvarno raspoloženi, možete pritisnuti W za izbeljivanje (whiteout) i slajd će postati beo i onda ponovo W da biste vratili sadržaj.