Instructions
Improve your vampire's mood. Keep your Sim out of sunlight and confined in the darkness during the daylight hours. Provide entertainment to keep the "Fun" meter up, such as a television, game system or radio. Keep food, a bathroom, shower and bed available to promote a better mood. This will positively affect your Sim's relationships.
Build a relationship with those you wish to infect. Start off with friendly interactions first, such as "Gossip," "Chat" or "Compliment." You can also invite your guest to participate in social activities, such as watching television or playing chess together.
Use other relationship interactions as they appear. These may include "Friendly hug," "Admire," "Back rub," "Flirt," "Kiss," or "Brag." A plus sign will appear above the Sims' head if the interaction went well. Pay attention to these cues. While some Sims may enjoy hearing another Sim brag, others may find it detrimental to the relationship.
Wait for your vampire Sim to bite the desired. A high relationship is required before this begins, but the process is automatic. Players can protect those they wish to keep as regular humans by keeping the vampire Sim occupied throughout the day.