You haven't been outside for a long time, so Sonic wanted to get you out of the house and loosen you up a bit. You've been walking around almost all day, and you've managed to loosen up a bit. At the end of the day, Sonic dragged you to a clearing to admire the sunset. By that time, you were already laughing and smiling from ear to ear. The hedgehog managed to cheer you up! He smiles himself, looking at you. I like your smile.