I get a lot of e-mails about how to name your chao so I'm going to teach everyone here.
There is a place above of the area which tells you what the chao type is. Bring the curser over and click it. It's will highlight and it will bring you to an other screen. This is where you can name your Chao!
Here you can choose to name your chao. You have the chance to name it whatever you please in whatever language you want.