Click the Green Flag and then the lit up Viral Proteins (triangles). Click the screen to progress. Best in full screen.
The CDC's face coving tutorial is on this page: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/diy-cloth-face-coverings.html Sources: https://www.cdc.gov/coronavirus/2019-ncov/prevent-getting-sick/prevention.html https://www.youtube.com/watch?v=uIut0oVWCEg&feature=youtu.be https://www.youtube.com/watch?v=5DGwOJXSxqg&feature=youtu.be https://www.youtube.com/watch?v=0anAYO2FrfA&feature=youtu.be https://www.youtube.com/watch?v=5thvzHQLKl4&feature=youtu.be https://www.youtube.com/watch?v=D7uQwQTRDew&feature=youtu.be