In an open work environment, it is sometimes difficult to focus. Put on noise-canceling headphones for times when you are working on a task that requires concentration. Earphones serve as a visual cue to your colleagues so they do not bother you unless absolutely necessary.
Have a common "code" that symbolizes the unavailability.
- Two earpieces mean "Leave me alone. I'm focusing."
- Only one earpiece means "Ask before interrupting me."
- Without earphones means "You can interrupt me."