"D" looks at their watch/computer/calendar = has enough info and ready to end meeting.
"D's" eyes have glazed over, "frozen in time" look = has tuned you out!
"D" gets up from desk & goes to the door = has decided meeting has ended!
Responding to Non-Verbal Clues of a "D"
Your Body Language
Gestures - Keep high emotions out of the situation.
Facial - Keep eyes glued on the "D".
Posture - Poised to get up and take care of business.
Sitting - Sit across from the "D". Body squared with theirs, not at an angle.
Don't get too comfortable - you'll be gone soon.
Your Reactions
"D" looks at their watch/calendar/computer..You should move onto another point or topic.
"D's" eyes have a glazed over, "frozen in time" look... You should wrap-it-up with recommendation.
"D" gets up from desk & goes to the door... Immediately stand up because you are being asked to leave. (If issue was not resolved, then identify a plausible solution & send a brief "FYI" email within 24 hours.)
Extra Tips
If other person is a "D" and you are...
D
Keep yourself "in-check" while the other "D" is wanting the focus.
I
Focus on business-like approach. Don't repeat yourself.
S
Take fewer notes. They want to see you acknowledging their input.
C
Don't over-analyze. Communicate you are tracking with them (e.g. nod your head).
