You awaken near a glowing runic stone. Your first objective is to 'Investigate the Runic Stone'. Approach it and press the 'Interact' button (E on keyboard, A on controller). A short cinematic will play, revealing your latent shapeshifting abilities. You'll automatically transform into your first Prime Form (Bear, Lynx, or Owl, depending on your character creation choice). This transformation will also trigger a small group of 'Corrupted Sprites' to attack.
Combat Encounter: Corrupted Sprites (x3). These are weak enemies, desed to teach you basic combat. Use your chosen Prime Form's basic attack (Left Mouse Button / X Button) to defeat them. Pay attention to the tutorial prompts for dodging (Shift / B Button). Once all sprites are defeated, your first objective will update.