, you initially choose your avatar, name, and toggle a few initial character statistics, such as IQ and confidence. You basically start out at the bottom of the social barrel. You have a crappy basic job. You live in a small flat. You have few friends, and you are uneducated. Just like the real world, you have to juggle your social life with work, while gaining an education to get a better job.
You work all day so much like real life, you only have the evening to do anything. And, just like the real world you have to have money to do anything. The more you make, the more you can do. There are so many combinations that I could not begin to break them all down for you. So lets do this, and look at a few days in the life of... well, of me. So Monday morning, I go to work and have a bad day at work. This affects my mood. Now I have tons of options, but due to my mood, I will be content tonight to just have a jog, and my "turn" or evening is over. Tuesday morning, I have a good day at work, so I am in a better mood. I decide that since I have the money, I am going to get together with a few friends out at the bar. Depending on their personal interests, some of my friends have a good time and some don't. My interaction with others affects my Kudos score. The higher my score, the better things go for me in life. I could go on but you start to get the idea of how expansive this becomes, especially when you're faced with deciding between friends and school.