Possible Activites

I included this for possible activities to do when filling up your day and night. Each of them has a different effect, obviously, and some of them are only available during either day or night (* indicates night only, ** indicates day only).

Study
Studying allows you to do better in school. Doing good in school will open up some opportunities for you as well as change up events during the school day. Doing good in school also will raise some of your stats, mainly those relating to mental and intelligence capabilities.
Because of the hard mental work put into studying, it lowers your SE slightly.

Work Out
Working out allows you to increase your strength and agility and all related body stats. It also, however, drains a little of your PE because of all the work put into improving your body.
Working out will help you define your body, and it will also lead to some special events during school, such as athletic competitions and whatnot.

Rest
Resting is pretty much just relaxing at home. Since it relaxes both your body and mind, it restores some PE and SE.

Shopping
Shopping is hectic, and because of this, it reduces a PE point because of all the walking and carrying of items. However, you also get to pick through shops and buy items. This is pretty much how you shop and sell.

Going Out
You can only go out if someone invites you specifically. There are usually some drawbacks and benefits during the course of the outing. This includes stat alterations, PE and SE gain or loss, etc.

Go Drinking*
This helps relieve some SE, but it drains your PE. It also drains intelligence and mental stats. Because of your drunkenness, however, you also gain some physical stat points. This is due to things such as bar fights and whatnot, common around your city.

Take a Walk**
This event, which walks you through a local park, helps relieve SE slightly, but doesn't change PE (and can drain it if you're tired enough). It works like relaxing in that way, but also, you are treated to the possibility of a special encounter.

(I'll add more, eventually. If you have any ideas, contact me?)