Flirting with your date not only shows your playful side but also allows you to share details about yourself in a humorous yet intimate way. Making eye contact, smiling and lightly touching your date's arm are great nonverbal cues to show attraction. Also, when we're attracted to (or comfortable with) another person, we often unconsciously mirror the gestures and body language of that person. This matching is called mirror-image postural echoes, and when we mimic another person this way, we're signaling that we like that person. Intentionally mirroring your date's posture or synchronizing gestures can help break tension and make the other person feel more relaxed around you -- be sure to do this subtly, though, or risk having your flirty behavior seem downright awkward.