Look around you, wherever you are, and find three green things that may fit in your pockets, and three red objects that are clearly too big to fit.
OK, now you have six objects.
Go ahead and say their names in alphabetical order.
Now name them in reverse alphabetical order.
Now count the total number of syllables in those six words.
Not easy, right?
All these mental operations engage your working memory — think of working memory as your temporary mental workspace where you can hold and integrate several units of information at once.
Feel free to practice in different locations … you can take these brain teasers with you, anywhere you go 🙂