Step 1: Split the group into two smaller groups and draw a line on the floor to divide the room into two. One group is on one side of the line and the other group is on the other. Distribute scarves to each member of each group apart from one person. One person from each group will keep with his/her eyes open.
Step 2: Put music and ask both groups to dance vigorously as they move around. The person with his/her eyes open should stand in line and try his/her team members not to cross the line (with movements, verbally, etc).
Step 3: You can change the person that keeps with the eyes open, so that every participant has the opportunity to be in this position.
Variations
You can also play this game for fun and tell everyone to close their eyes and dance randomly and freely in the room.