Leave the smart devices at your desk and gather the office staff in a conference room to sit in shared silence.
There is powerful mental energy to be had in that room.
Put an idea on the agenda and let everyone have their silent thoughts. Initially, try this for just for five minutes. Then allow people to share.
Over time, build up this practice to 10 or 15 minutes. You’ll be amazed at what your group quietly can think through and then share together. When people finally are allowed to talk, positive energy will exert itself. Ideas to improve the workplace, for instance, will quickly surface.