Table 2. Statistical analysis results for network measures (Strength, CPL_i, and CC_i).

	Frequency	Site	Kissing	Posthoc Scheffetest for Kissing
Strength	F5,140 = 213.26	F2,56 = 29.34	F2,56 = 8.15	MRK>MHK
	P<0.0001	P<0.0001	P<0.005	P<0.005
	η2 = 0.88	η2 = 0.51	η2 = 0.23	MK-SA>MHK
				P<0.05
CPLi	F5,140 = 169.45	F2,56 = 16.25	F2,56 = 12.57	MRK<MHK
	P<0.0001	P<0.0001	P<0.0001	P<0.0001
	η2 = 0.86	η2 = 0.37	η2 = 0.31	MK-SA<MHK
				P<0.001
CCi	F5,140 = 57.65	F2,56 = 74.19	n.s.	n.s.
	P<0.0001	P<0.0001
	η2 = 0.67	η2 = 0.73
Intra-brain	F5,140 = 94.01	F2,56 = 51.25	F2,56 = 7.13	MRK>MHK
strength	P<0.0001	P<0.0001	P<0.005	P<0.005
	η2 = 0.77	η2 = 0.65	η2 = 0.20	MK-SA>MHK
				P<0.05
Inter-brain	F5,140 = 102.51	F2,56 = 11.09	F2,56 = 4.90	MRK>MHK
strength	P<0.0001	P<0.0001	P<0.05	P<0.05
	η2 = 0.79	η2 = 0.28	η2 = 0.15

CPL = Characteristic Path Length, CC = Clustering Coefficient, RK = romantic kissing, K-SA = kissing while performing silent arithmetic, HK = hand kissing, M = mean, n.s. = non significant.