Re: How can one learn the mating ritual of club dancing?
Actually, it's a good rule for any encounter.
Being overly nice and supplicating isn't attractive - if you buy a girl a drink, do it for a special occasion, because she did something you liked and you want to validate her, because you have infinite amounts of money and she's struggling, or because you're doing it randomly for the hell of it as an act of kindness.
Don't do it to make her like you.