There's a reason Jim Parsons has four Emmys for playing Sheldon Cooper on The Big Bang Theory [1]. Sheldon is the show's breakout character, even on a comedy full of very funny stars. Not only does he get the lions' share of the memorable one-liners [2], but his facial expressions cannot be topped. In his honor, here are the 20 faces you've definitely made at some point in your life.

The "Something Is Definitely in My Eye but I'm Going to Pretend I'm OK"

The "Oh, Honey"

The "I'm Unabashedly Unashamed of My Hobbies"

The "Not Afraid to Be a Cat Lady"

The "I Don't Know What You Just Said but I Don't Think I Like It"

The "My Amazon Box Is Finally Here"

The "I Know You Want to Go See a Late Movie but I'm Ready For Bed"

The "I Support You Even When I Don't Approve of Your Life Choices"

The "Do Not Even Think About It"

The "Who Told You That Because It Is Not True"

The "Please Take Your Picture Because I Hate This"

The "Holy Cow, I'm Dying"

The "I Was All Ready to Be Angry but You Actually Did What I Wanted"

The "I'm Trying to Stay Awake For American Horror Story but It Is Very Hard"

The "You Want a Piece of This Action?"

The "I Am Suddenly Enraged"

The "Oh, Should I Be Writing This Down?"

The "See, I Can Be Happy For Other People"

The "I Have an Excellent Poker Face"

The "I Did Not Understand What You Just Said but I'm Sensing It Was a Joke"