Table 1.

Stages of coordination: Task segmentation and associated information flow between the members of the dyad.

		Task segments	Information flow
			Leader	Follower
Stages of coordination	Building-up	Segment s0:
		Preparation to tap	↔
		Segment s1:
		Tap onset follower to movement onset leader	←
		Segment s2:
		Movement onset leader to movement onset follower	→
	Maintaining	Segment s3:
		Movement of both subjects to door as close as possible	↔
		Segment s4:
		Door opening and begin entry pattern by leader, entry of follower	→
	Breaking-up	Segment s5:
		Movement of both subjects to the corners of dominance.	↮
		Segment s6:
		Start pieing	↮
		Segment s7:	↮
		(a) Reach the corner of dominance
	Building-up	(b) Gaze interlock	↔
		Segment s8:
		Movement to next stacking point (right or left from next door).	↔
		Segment s9:
		Restacking (follower's avatar aligns behind leader's avatar).	→