Welcome to FeralHeart, Dustie. I hope you have a good time here. ^^
There is really nothing more to do than explore. The basic controls are W ,S , A, D these are all to run. You can also use Q to keep running, with out holding down the W button. c:
Use esc to quit or go to options, when you choose the second you can go to the tab 'controls' and check out the rest. ^^
At the bottom of the screen you'll see small pictures, if you click them, you will open more windows where you can choose emotes, actions, etc.