Also, if you forget anything Hugin told you, you can find it in the inventory screen (Tab on keyboard, Y on controller). On the top right of the screen is a box with four symbols:

• The raven allows you to see all the things Hugin has told you so far, as well as what buffs/debuffs are currently active on your character and what effect they have
  
• The intersecting triangles show you your current skill levels
  
• The pair of swords are for turning on/off PVP mode (which for this game means whether or not you allow other players to be able to harm you - straight swords is off, crossed swords is on).

Not in game right now, so I don't remember what the other remaining symbol is for...