"Mindfulness means paying attention in a particular way: on purpose, in the present moment, and non-judgmentally." -Jon Kabat-Zinn, Wherever You Go, There You Are.
Like any task that requires focus, mindfulness embraces paying attention to one's present situation. This does not mean just sitting and meditating, which is good, but rather embracing whatever you are doing in the moment.
The Untwist Toy is a great tool to help direct focus. Use the Untwist as the object of your attention. Breathe. Listen. Observe. Continue.