I glean a few times a week, and it's all about the subject line. I look for the lyrical, "Billowy Red Scarf Girl" or the funny, "Hipster Chick Who Passed Gas," the unintentionally funny, "Looking for the Hot Girl in Pink Dress," ones that immediately suggest images, "Furry Arms Under a Yellow Umbrella," or the plain odd, "Seeking Girl Who Bit Me Twice..." I don't think I've ever abandoned one... the images usually arrive fully formed in my head as soon as I read the message, and I decide whether to draw it or not.