Just have a couple of minutes for some mindfulness? Try taking a few mindful breaths before you start your next meeting.
Simply breathe in, and feel in your body how it feels to breathe in, and then breathe out, and feel in your body how it feels to breathe out. As best as you can, stay with the sensations of the breath as it moves in and out of your body.
When thoughts pop-up, try not to judge them, or yourself. Notice and release them gently, kindly guiding your attention back to your breath.
Practice for a minute or two and see how you feel.