Ava wrinkled her ___ and laughed. Crossword Clue

 The answer to the crossword clue "Ava wrinkled her ___ and laughed" is NOSE. This is a 4-letter word that refers to the part of the face that sticks out and is used for smelling.

In the context of the clue, Ava wrinkles her nose in amusement at Dana's suggestion. She finds the idea of meditating together in corpse pose to be funny, but she is also intrigued by it. She is willing to give it a try if Dana is.

The word "nose" is also a play on the word "no." Ava is saying that she does not mind meditating together in corpse pose, but she is not sure if she is ready to commit to it just yet.

I hope this helps!