This word is not acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. A gesture made in response to another gesture.

"Even in the case of the most passionate lifelong readers, the act of picking up and opening a book masks the countergesture that occurs at the same time: the involuntary act of not picking up and not opening up all the other books in the universe."