This is pretty neat: Tonight, Twitter is introducing a feature allowing viewers to share whether they think the candidates participating in tonight’s Fox News GOP debate in Iowa are answering the questions being posed to them or dodging them altogether.

Here’s how it works:

* When a candidate answers a question, tweet that person’s name with #answer (if you think they answered the question) or #dodge (if you think they, well, dodged the question). Example: “gingrich nailed that #answer” or “gingrich is avoiding the issue #dodge”.

* Watch the live results over at live.foxnews.com.