Smooth pick up lines may have worked in 80s movies but most women today are a bit more savvy. There are much more subtle and effective ways to turn women on.
Eye contact is one of them. Pay attention to what she is saying and keep your eyes above her bust line. Breast ogling is not a turn on, unless she has just had them done and is asking you about them.
Touching is another way to show her you are interested but it has to be the right kind of touching. Running your thumb in little circles over the top of her hand or her palm can be highly arousing. Grabbing her ass is not.
Touch her as if she is the most beautiful woman you have ever seen.
Caress her with the love that most guys give to their favorite vintage car or most dreamed of stereo component. Run your hands gently over her curves.
Put your passion into the kiss. Slow and seductive. Deep and hungry. Your kiss can be the date maker or breaker. Savor the taste of her. Drink her up without leaving her face
all wet and drippy.