Usually depicted as simple black vertical ovals or lines. Common variations include "angry" slanted eyes, "scared" wide eyes with pupils, and "dead" X-marks.
The implementation of facial data protection in assets offers several benefits, including: bfdi faces assets
DeviantArt hosts thousands of "Free to Use" asset packs. Search for "BFDI Face Asset Pack" or "Object Show Mouth Chart." Many users compile massive ZIP files containing every mouth shape used in Season 1 (BFDI) through Season 4 (TPOT). Usually depicted as simple black vertical ovals or lines
While assets are still used, modern episodes incorporate more fluid, expressive animation and varied "weird faces" for comedic effect. Usage in the Community "scared" wide eyes with pupils