A handy hint

How do we know we're washing our hands correctly?

Compare your technique with this one, demonstrated on Twitter, with millions of views!

Ava DuVernay (@ava)
I thought I was thorough, but this taught me not to forget the thumbs! Take a look. And blessings to all today. 👋🏾✋🏾👐🏾🙌🏾👍🏾 pic.twitter.com/6yajJ2Gj8j