A. YES! I do, I admit it - I am a marketing whore... :) A cover with graphics on it that interest me will make me pick it up to read the back. I like my covers dark and oozing paranormal or eroticism. I also judge a book by its title-- if the title intrigues me or includes something I may like - I'll usually give the book a chance.
What about you? Leave your link and I'll stop by your blog to see your answer. :)