Everything in FH makes me happy, but there are some things that I want to point on.
1. When I'm bored and I'm chilling around, I usualy get awesome and random ideas about making a new character. I love making new unusual characters, with something abnormal and weird. I have some normal characters, but they are boring for me and I don't really play with them. That's why I don't have a lot of characters, but each of them is different and I love them both.
2. I also love to think about a biography for my characters. When an idea comes in my mind, I open Microsoft Office Word and I write everything about my new character. Appearance, personality and bio. I have a folder in my computer which contains a long description for each of my characters. Then, I point on the most importnant of it and I type it in the "Bio" blank in-game, although I want to put it all. I hate the space limit in the "Bio".
I also save each description in my folder if I decide to share it here on the Forum.
Those two things are my favorite of FH. It's definitely my favorite game, because it's like a second life for me, and I'm sure there are many others like me.