Like Normal MMORPG's
W,A,S,D or L,R,U,D Arrows to move in the corresponding way
1,2,3,4,5 or Click the Slots to activate Abilities. Click the little arrow underneath to show a list of skills you can use in this slot.
Single Click on a Foe to target them. Double click to attack (If in range). This is also required to use certain Abilities.
Double click on Objects like Chairs to Sit on them.
Click on the Message panel to type messages (though RN is useless. Am planning on adding / commands to it at some point) Press Enter to send the message.
Hover the Cursor over the Health, Stamina (Both Player and Foe) and XP bar to show the precise Numbers of health (RN /100 for Health/Stamina).