Jules Mermelstein

“Of course, walking alone on a country path, it is easier to maintain mindfulness. If there’s a friend by your side, not talking but also watching his breath, then you can continue to maintain mindfulness without difficulty. But if the friend at your side begins to talk, it becomes a little more difficult. If, in your mind, you think, “I wish this fellow would quit talking, so I could concentrate,” you have already lost your mindfulness. But if you think, instead, “If he wishes to talk, I will answer, but I will continue in mindfulness, aware of the fact that we are walking along this path together, aware of what we say, I can continue to watch my breath as well.” If you can give rise to that thought, you will be continuing in mindfulness. It is harder to practice in such situations than when you are alone, but if you continue to practice nonetheless, you will develop the ability to maintain much greater concentration.”
― Thích Nhất Hạnh, The Miracle of Mindfulness: An Introduction to the Practice of Meditation