Have you ever been left scratching your head and wondering why someone didn't like you? If you have, you might want to check out these small things you can do to make sure your chance of romance is better than ever.

Nicholas Boothman, author of "How to Make People Like You in 90 Seconds or Less" offers this some simple but hopefully effective advice for the guys. Check out some of these tips from his book:

  1. Floss your teeth
    Seems minor but less-than-pearly whites and breath that could kill a small animal make your meet-and-greet tank before it even takes off.
  2. Notice the color of her eyes
    Picking up on the hue will force you to keep your pupils focused on hers -- not nervously wandering all over. Eye contact is crucial, subliminal way to show that you're a sane, friendly person.
  3. Mirror her
    If she scratches her nose, rub your eye. Pick up on her voice pitch and match it. We gravitate toward people like us -- if you're not a scary mimic, this approach will warm her up.
  4. Back off
    We all need our personal space, so if you're closing in on a potential pal and she takes a step away, you should stop, back up, and continue your introductions from a safer distance.

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