​​​​​​​Tune out – In the office, headphones will not only drown out bothersome noise and enable you to better focus on your task at hand, but they are a great way to notify co-workers that you do not wish to be disturbed. By utilizing headphones, you’re signaling that work is being done.

Don’t always be available – Don’t allow people to interrupt you. Schedule ‘unavailable’ periods throughout your work week, during which it’s known you are not to be disturbed. Close your door, put up a ‘do not disturb’ sign, set your messaging app to ‘busy,” etc. 
Turn off your technology – Even when you’re trying to ignore communication from others, it can be difficult to do so when you know an email or chat is awaiting your response. Eliminate the urge to reply immediately by turning off the ringer on your phone, closing your email program, and logging out of your internal chat application.