How to find mindful moments while socialising?

I seem to find such peace, silence and observation in solitude even when experiencing challenges such as hunger, pain or discomfort from work but when I'm with friends and/or family I find myself in such a heightened state, I keep noticing my heart racing or tension in my body but it doesn't seem to be enough... Is it even realistic to hope for mindfulness in those settings or should I just go to the bathroom and take a 2min breather? lol