Press the green flag. It is coded to change every 8 seconds and we all know Scratch seconds are slow, so don't worry if it seems to be lagging (unless it actually is lagging)
Some facts from: https://www.bestcollegesonline.com/blog/33-easy-speaking-hacks-to-make-you-sound-smarter/ http://www.yourdictionary.com/slideshow/10-words-sound-wicked-smart.html https://www.learning-mind.com/look-smart-science/
