1 Get her to approach you

"This is easier than you think, " says psychologist Dr Perry Buffington, author of Your Behaviour Is Showing. "Eighty per cent of sexual contact is initiated by women sending signals, you just need to get her to follow them through."

Stand in the middle of the room - three times as many women will be able to see you. Scan the crowd for a familiar face: women are four times more likely to approach someone they have seen before because they subconsciously no longer view them as dangerous.

Make eye contact, smile then look away. Repeat this a few times then step away from your female friends so that she knows you are definitely approachable.

2 Get the second date

"Don't always agree with everything your date says," suggests Dr Yvonne Fulbright, author of Touch Me There. "We are attracted to socially dominant men, not pushovers.

"During the date play devil's advocate on a few subjects she talks about, but ultimately bring your argument back to her way of thinking," says Fulbright. "She'll think she's change your viewpoint." NB: mild clashes are one thing, throwing your beer in her face is quite another.

3 Get off the hook

From the look in her eyes you're guessing she has found out what really happened on that stag night. "When she confronts you, stand up," says Buffington. "This makes you look authoritative and also speeds up your heart rate, which will increase the flow of blood to your brain, helping you think faster."

Next, try to look sorry. Studies from the Journal of Personality and Social Psychology have shown 90 per cent of women will forgive their partner if they display signs of embarrassment and remorse.

4 Get her to agree to that wide-screen

Getting her approval is a matter of timing. "Approach her when her pupils are large and dilated," says Buffington. "When people are in a more receptive mood their pupils get larger."

But if you can't wait that long, University of Chicago scientists have found you can trigger the mood switch simple by dimming the lights, causing her pupils to expand in the darkness. "Look at her eyes the second she responds," says Buffington. "If she looks to the right, she tends to make quick decisions based on facts, so be prepared to back up your request. If she looks to the left she's more likely to be swayed by displays of emotion." Tell her how happy it'll make you, rather than turning on the tears.

5 Get her to go down on you

It seems Pavlov missed a trick by getting his dog to salivate at the sound of a bell. "It's called social conditioning," says Fulbright. "If the brain knows it's going to the rewarded after an act it begins to anticipate and feel pleasure at the thought of it.

"Take advantage of this by making sure every sexual encounter ends extremely positively. Tell her how good it felt and how wonderful she is at doing it. Praise gives women a massive rush of the feel-good hormones dopamine and oxytocin. In typical Pavlovian fashion she'll begin to equate giving you pleasure with making herself feel good." And forget about the boredom and lockjaw.

6 Get her to treat you

"Women are pre-programmed to be attracted to generous men. It shows that they have such an abundance of resources that are able to share," says evolutionary psychologist Dr Geoffrey Miller, author of The Mating Mind. "If you donate to charity she won't know unless you tell her, which will make you look boastful. But if you donate blood you'll be given a bandage that says so. Stick it on your coat and you're basically saying you are healthy, generous and HIV-free. Give blood once, but wear the badge daily as a subconscious reminder."

Plus, studies by the University of Nottingham in the UK have shown that a one-off donation of blood improves your mood and boosts your confidence. "When a woman meets a high-status man her natural urge is to supply him with food, gifts and sex in order to encourage them to form a commitment to her," says Buffington. Just hope she doesn't ask you for a kidney in return.