This is a guest-post by Wolf Pascoe on Jane Friedman's excellent blog, regarding a technique his writing/critiquing group uses. Handling criticism of your work (constructive or otherwise) is a pretty important skill for a writer to learn. Considering the sheer amount of figurative blood and literal emotional energy that writers pour into their creations, having someone else point out the tarnished flecks on one's golden eggs can be upsetting.
I quite like the methodology outlined by Wolf in this article (including how the 'Opinions' part comes at the end, the likelier to be lost to 'oooops, we're out of time!').
I recommend you have a read here: http://blog.writersdigest.com/norules/2011/06/14/4StepsToUsefulCritiquesTheLermanMethod.aspx