I have made my sim do a lot of playful interactions. She had 5 or 6 playful things affecting her mood. The mood will not go above very playful. I thought she would get the hysteria mood. I really want...
Positive moodlets increase an emotion. For instance, getting any moodlets that increase "happy" will also increase "playful", so if you want hysteria, use happy and funny actions and they should build up.