When my client walks through the door of my office for a session or even just a consultation, my attention is focused only on that client, what they want, and how I can help them get it. To help them recognize this, I have a short procedure I follow at the beginning of each visit. Once they are seated, I close the door, lower the shades, and put my phone on airplane mode. I'll also tell my client I'm doing this, to guarantee we won't be disturbed — which often prompts them to follow suit and silence their own phone.
This preparation lets my client know they have my total attention. They can feel more confident I have their best interests at heart — and as a result, they often feel more at ease discussing what can be very sensitive, private situations.