Within the tribes, members demonstrate all the basic characteristics of being part of a group. There was casual interaction as everyone had begun as strangers to one another and needed to get to know their "team-mates". They're also interdependent for basic survival tasks i.e catching fish for food, collecting water, starting fires. Tribe members also have a certain degree of shared behavourial standards. For example, it is an unsaid rule that everyone must help in the day-to-day activities in camp. Lastly, each tribe has an obvious collective identity, albeit a rather superficial one, as they don their respective tribe's colours on their bandanas.
Interestingly enough, the oldest members of each of the two tribes were made the "leaders" of the tribe. In the second episode, members of tribe Fang came to an iffy collective agreement that their tribe did not need a real leader, largely because they weren't satisfied with some of Gillian's (oldest member of tribe fang) actions and the fact that nobody wanted to step up to assume that position of power since it would inadvertently make that individual look "strong" and therefore risk becoming a target. In other words, tribe Fang decided that they would count on their group synergy to pull them through.
Contestants have to constantly manage group dynamics and ensure that they balance their effort based on both individual and group needs. Should they choose to solely focus their energy on individual needs then they would be seen as selfish and voted off right away but at the same time they could not afford to just be the ultimate team player and not watch their backs because backstabbing was the name of the game. It is a classic case of group socialisation as contestants seeked to influence the group to act in certain ways or make certain decisions that would most benefit them in terms of their power and level of membership within the tribe.
Finally, the occurance of groupthink takes place repeatedly. Within a tribe, cliques or alliances are formed and the one with the most members is the group within the group that is in "power". Most of the time, the relatively low-profile members of a tribe go along with the decision of the dominant alliance on who to vote off even though they do not understand the logic behind it, for fear that their disobedience would put their heads on the chopping block instead.
Which role do you think would be the best strategy in this game of complex group dynamics? The manipulative backstabber, the quiet worker or maybe the outspoken leader? Ever thought of how you would play the game should you be a contestant on Survivor?