How can you see the needs and wants of NPCs in the sims 2

You cant see the wants and needs of an NPC. This is because an NPC stands for Non-Playable Character. The one way you could see the wants and needs of an NPC is by doing the cheat BoolProp testingcheatsenabled true (in Sims 2) or in Sims 3 it would be testingcheatsenabled true ( this cheat DOES NOT work for Sims 1) and after you did that, press shift and at the same time click on the NPC of choice and in the pie menu click "Add to active family, then the NPC (now would be PC i suppose) will live in your house and you can see the needs and wants of it