People will feel more likely to do a favor for you right after they are given something “free” by the “world”, but it must be within 5 minutes of receiving the free stuff. This could be used with Borrow a Dollar.

A group of people will be able to influence one person to do something even if they know it is wrong or simply incorrect. Such as choosing the “longest line” when they are all the same length.

Also people will listen to an authority figure giving instructions.