I read an article today on NPR about peer critiquing. It said that you should "Be kind, be specific, and be helpful." As a writer, I'll always accept that of feedback. I'll work even harder as a reader to make sure that my feedback fits all three of those criteria as well. (I'll also try to be funny, because we all need more laughter in our lives.)

VirginiaR.
"On the long road, take small steps." -- Jor-el, "The Foundling"
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"clearly there is a lack of understanding between those two... he speaks Lunkheadanian and she Stubbornanian" -- chelo.