Steve is the default character that you control in Minecraft. On the PC version, you can change the way the default character looks using skins. However, the PE version does not allow you to change skins. There are many apps and websites in which you can make a skin, such as Skin Creator Pro and Skindex.com. Steve has 10 hearts, as you will see in your world, and some inventory slots in the bottom of the screen. This is where he holds items and blocks.