The original version of Moving Motivators is intended to be played by two people. If you have a group of more people, ask them to self-organize in pairs. In each pair the game is played twice: once for each person. While one person plays, the other observes.
Go through all the cards with the entire groep and briefly explore the meaning of each word. Answer any questions that people have. If there are different interpretations about the words, that's fine. (Even the researchers and scientsts don't always agree.)
It's time to start the exercise. One person in each pair starts and places the motivator cards in order, from unimportant to important. This is a personal reflection. There are no good and bad choices. The player should think out loud and explain his choices to the other player, who is simply observing.
Give them 8-10 minutes for the first person.
Now let every player consider an important change in their work. For example, becoming a more Agile organization, being promoted to a management position, or moving to another city. The player should move cards up when the change is positive for that motivator, and move them down when the change is negative. Again, the player explains to his observer why he moves the cards up or down.
Start the exercise all over but now with switched roles. The observer becomes the player and first orders her cards and then moves them up or down depending on some change. All the while, she explains to her observer her motivations.
Again, give them maximum 8-10 minutes for this second round.
Start a group-wide evaluation. Ask what people noticed, whether there were important similarities or differences, and what the effect was of having an observer sitting next to them.