The very first phase of the Mating Game is initiated by the woman sending you some sort of nonverbal signal. This is supposed to be the man’s cue to respond. In general though, men are not very good at picking up on female signals. Either they’re unaware of the signs to look for, entirely oblivious, or just plain stupid. To help you out, here are the

Top 10 Female Flirting Gestures which could very well mean that she’s interested in you:
She raises her eyebrows for a couple of seconds, then quickly lowers them.
She gives you short, darting glances.
She gives you a coy smile, either looking downward or giving you brief eye contact.
She licks her lips. It might be a single lick on the upper or lower lip, or she might run her tongue around the entire lip area.
She hikes up her skirt a bit and exposes a little more leg.
She fondles objects, like sliding her palm up and down her glass or playing with her napkin. She pushes her fingers through her hair.
She primps her clothes.
She whispers to her friend.
She moves her body in time to the music.

When you DO finally pick up on her clues, you can take it to the next level. If you’re at a club, ask her to dance. If you’re at a bar, send her a drink. This opens up a line of communication. It also opens the floodgates for more flirting. There are certain things that you can do to charm and woo her, and let her know that you are definitely interested. Remember, flirting is play. It’s saying one thing and meaning another, and fully intending that both of your meanings are understood.

A leading expert on Human Sexuality offers men these tips.

Top 10 Ways To Be a Great Flirt:
Use flattery, but be sincere. Smile.
Keep direct eye contact.
Listen to her. Give her your undivided attention.
If you discover a common interest, discuss it.
Ask her about her life, her job, etc.
If you learn her name, repeat it while talking to her.
Be relaxed, be conversational and be yourself.
Have confidence and feel good about yourself. Don’t let past rejections cloud your judgment and make you paranoid about interaction.
Be truthful, careful and clear about your intentions. 5 Things to Avoid when Flirting:
Don’t wait on her to make something happen. You guide the conversation.
Don’t talk too much about yourself (boast) unless she shows genuine interest.
Don’t cling to her, paw her, grope her.
Don’t fidget or appear nervous.
Don’t rush her into something that she doesn’t want to be rushed into. Ease her into it and make her feel comfortable about the situation and about you.