Every time you want to address the whole staff, try organizing them in groups of two, three, or at the most, four. Next ask them an interesting question. Then ask and listen to what they come up with. Now address them if you still want to.
Every time you talk over a minute (9 seconds to 7 minutes = the bandwidths of attention for many) ask yourself if the other person is still engaged. You can also ask them.
What does it mean to be, “The guide from the side instead of the sage on the stage?”
Here’s a fun motto: “One mouth, two ears, two eyes!”