Don't worry -- if you aren't used to this I'll make it easy!
The Challenge: Be mindful. That is a great place to start. You may notice you focus on what you are doing or the absence of "doing". In other words; meditation practices vary. In the 8 limbs of yoga one limb is concentation; because focusing on one thing can be easier than focusing on nothing. Meditation is also one of the 8 limbs. Here you begin to notice the gaps between the thoughts. Explore and find peace. Hopefully you will find this practice relaxing and healing.
What I am working on:
Again today I realized how easy it is for me to be in the future. I am a planner and that can make it hard to be present sometimes. I find it is easiest on my walks to be present. I spend time every day (even if just for a few moments) focusing on only my breath.