In these last two chapters, we've focused on ways to cause players to bond with NPCs. Chapter 2.10 detailed a few methods to make a player identify with an NPC. This chapter dealt with techniques to make a player feel close to (i.e., have Chemistry with) an NPC:
Certainly our emotional immersion in life is enhanced by the existence of people with whom we feel close. Emotional immersion in a game can be significantly enhanced from a player feeling close to one or more of the game's NPCs.