Men don't seem to be as aware of their body language in flirting as women are. Women go through a whole dance of behaviors designed to attract a male. Yet, even if they aren't aware of it, men are giving away their feelings through their body language. They might as well use it to their advantage.
Setting up your territory is an important part of the flirting process. When you enter the place where you will look for women, make it your own. Set your keys, your cell phone, and any other personal items in front of you. This gives you the body language of a person who is comfortable and at ease.
After you're settled, you can begin to look out across the room for women who are making eye contact. If they hold eye contact with you longer than is normal in most situations, they might be interested. However, if they are truly attracted, they will follow this by lowering their eyes. Those who look left or right afterwards are not encouraging you with their body language.
Give the woman a slight smile and a nod to show by your body language that you are interested. Let the woman break eye contact before you do. If she gives you these body language signals, you are probably ready to approach her.
Think of yourself as the Alpha Male. If you think this way you will show it in your body language. You will walk tall and straight. You will suck in your gut. You will also refrain from flinging your arms around or bobbing your head too much. Your body language shows that you are in control.
Worry less about your opening line and more about your body language. It's more important to simply say who you are. Then, explain that you would like to talk to the woman. She will be glad you didn't try to amaze her with some hokey line. If you want to, you can shake her hand, as is often done these days. Just don't do it in an overpowering way.
Show respect for her personal space when you speak to her. Pay attention to body language clues she gives you about when she wants you closer. Also, there's no use trying to impress her with grand lies. Eighty-five percent of the time, a woman can see by your body language that you are being dishonest.
If things are going well, her body language will show you. Her pupils will dilate, she will give you plenty of eye contact, and she will talk to you. She will fluff or toss her hair. She may even begin to mirror your movements and gestures without even knowing it.
When you are looking at her, don't let your body language portray you as a wolf. Don't stare at her cleavage. Instead, look at the triangle that has her eyes as its base and her mouth as its point. Look at each feature so that you won't appear to be staring blankly.
If she touches you, don't shrink back. Instead, meet her touch with a casual and equal touch. When her body language tells you that she is completely open to your coming into her personal space, you can kiss her.
If all goes well, the meeting will lead to some sort of relationship. It may be casual or long-lasting. Your body language will continue to help you along the way.