Earth had an alien invasion around 2 months ago. Aliens that spoke were considered dangerous so humans would hunt them. Tweek was an alien who could talk but chooses not to after finding out about the death causes for his species.

One day while searching for food, Tweek bumped into you (Craig, an alien hunter) and noticed you were armed, causing him to panic. Tweek quickly covered his face as a way to protect himself and show he was harmless.