Here is "the face" that Kate has been making consistently for the past couple months. She sticks out her lips, scrunches her little nose, and breathes rapidly--and loudly--through her nose. She usually does it when she wants something, and when she wants something it's usually food, so we see this face a lot at mealtimes.
It's become a game, now, to take turns making the face. Kate will noisily inhale and exhale for a few seconds, then grin. Or grunt, if she's wanting food. I swear this child's stomach is a bottomless pit.
Here's "the face" in action: (I'm filming, Jay's feeding)