The first thing to state is women aren't stupid, thousands of years of evolution have honed there skills of spotting a potential mate. With this in mind remember the first rule is be SUBTLE, women like to be looked at, but we will pick up that sly glance at our breasts, so don't stare and drool or she will think you are a fool.

Remember if you see something you like, let her know you like it, pry your eyes away from her chest, look her directly in the eye and smile. A lady will always fall for a gentle man, hold the door open for her, if she drops something pick it up, and use these moments to explore the next move. Move close to her, and if she doesn't move away, gently touch her, not anywhere directly sexy, just guide her through the door with your hand in the small of her back, if you do this right and she is receptive the effect can be dramatic.

Talk to her, and talk about her, what she likes, how she feels. Don't feel constrained by the situation, if she says something respond to her and don't forget you can be cheeky but not rude. Be masterful, don't timidly ask her out on a date, and say "What are you doing next..... I want to take you out". This puts the pressure on her, and usually she will crumble and accept, if she doesn't you are wasting you time with this lady so put it down to experience.

What ever you do keep the eye contact, smile, and always put her first. Believe me women want men to flirt with them, it doesn't matter if they are in a steady relationship or even married, they will still enjoy the attention. But make sure their men rant around !

Finally beware of flirting at work you don't want to have to pack you desk after a case of sexual misconduct.