Sex and relationships expert Dr. Ruth has some solid opinions on how swiping within dating apps comes into play — or should we say, foreplay?

Dating doesn't have to be nerve-wracking, but it does require preparation. You must do some up-front soul searching to make sure you're ready to be honest, open, and attentive. You need a strong sense of your dating expectations so you can clearly communicate what you're looking for without setting the bar so high that no one can clear it.

When you're on a date, flirting is a delightful way to make your date — and you, for that matter — feel irresistible and tingly all over. The point of flirting with your date is interest; that's why it's so alluring. Here are some flirting do's and don'ts: Use your whole body. Lean forward, make eye contact, smile, bend your knees a bit, and relax your hands and arms.

You have several options when asking for the date. The choices may be influenced by circumstances (like distance), personality, and personal style. In general, the closer you are when you ask, the better. When you’re close to the person, you get more information, you appear more courageous, and you get some practice for the date.

Our lives are defined by technology, and the dating scene certainly has changed because of it. The Internet, social networking sites, and cell phones are ubiquitous, but you have to use each of them with caution when you're meeting potential dates and going on dates. Here are some hints: Use common sense when posting information about yourself online.

Dating can be scary and fun and challenging, but you want it to be that way for all the right reasons — not because you haven't taken reasonable precautions about your own safety. Just as you look both ways before you cross the street, you should be wise enough to look both ways before you venture forth on a date.

If you subscribe to a mainstream online dating site, the site won't ask you overtly sexual questions for your profile, but that doesn't mean you won't have ample opportunity to lace sexual innuendo into your answers. We aren't just talking about essay questions, like "What do you think is sexy?" or "Define sexy," but multiple-choice questions with available answers that run the gamut from sexually neutral to unmistakably sexually provocative.

You get what you pay for in life, Internet-dating sites included. Unlike free sites, with pay sites you don't have the headache of endless advertising messages screaming in your face. In addition, the scope of coverage and available features are broad and robust. Solid supervision is provided (to weed out the wackos), and appropriate barriers to entry are in place.