In RL its the elastic string theory... It really works... Try it next time with a group of friends. Generally if you start walking the person who you have the strongest pull with will follow (unless they're heavily engaged in another conversation) Then the two of you pull someone else, and before you know it your whole group is moving. you can also push/pull people around like a street or something as long as you make the moves subtle enough that you dont just completely walk away from the group.