Mindfulness isn't a big production. It's not a mysterious state of mind and it's not something out of reach.
We focus our awareness on the exhale of the breath as a first step toward being mindful of this moment. If you're new to the practice, the breath is a great option of an anchor to point awareness towards because we have so many each day!
So see if you can catch each exhale, and forgive yourself when you miss a few :)