The subject line of an email shouldn't have to be the hardest thing you'll ever write. Good examples for filling in the blank include: “restaurants to try,” “books to. Three example online dating first emails are examined and than others but at the end of the day we're all just making our best guesses. "Girls get so many bad first messages in online dating. We're dying to get a message so good it knocks us over. Here's how to do it." Read More ›.