Turning our bodies to address a different side of the room or making small hand gestures can help to dissipate shakiness by fulfilling our need to move.
First there's tremor, which is an involuntary shakiness most noticeable in the hands —characteristically called a " pill-rolling" tremor because it looks like someone rolling a pill between their thumb and index finger.
You don't want to distract people by pacing too much, but taking a few steps in one direction as you shift between points can ease any shakiness you may feel.