But if there's silence after two e-mails, cut your losses and move on.6.

You may have stopped checking your profile and messages, but has he? Breaking Up If your relationship fizzles after a few dates, it may be tempting to revert back to e-mail to end it. "Don't go down in history as the guy or girl who dumped someone over e-mail, especially when e-mails can be forwarded." Instead, apply the Golden Rule and treat others as you would want to be treated. Safety Taking safety precautions is always crucial, whether you're dating someone you met online or in person.

Until you've had a conversation about retiring your profiles, says Spira, assume that he is still dating other people. Never give out your home phone number or address until you get to know someone, and always choose a public place for your first date.

It doesn't have to be provocative (and you most certainly do not have to have a perfect figure!

), but it gives the impression that you have nothing to hide; confidence is always attractive.

"If you don't have any phone chemistry, then it's unlikely that there will be a spark in person," says Spira. The Ideal First Date The perfect first date is a personal decision. "You can get a good feel for someone in 20 minutes," says Dr.

Gonzaga, "and since you both probably have to get back to work, there's a specified end time if the date doesn't work out." Spira prefers dinner dates because the extended length can give you a deeper sense of your date's personality.

"I equate online dating to looking for a job," says Julie Spira, cyber-dating expert and author of The Perils of Cyber-Dating.

"You'd want a rock star résumé for your perfect dream job, and you should feel the same way about your online dating profile." And the profile is just where it starts—we have plenty of expert tips, from sending the perfect first e-mail to picking your first date location.

Make a Move In your initial e-mail to a potential partner, it's crucial to indicate that you've read his profile and took an interest in it.

According to Ok Trends, the top three phrases in initial e-mails with the highest response rate are "you mention," "good taste" and "noticed that." So, describe something that resonated with you from his profile, advises Spira, but avoid physical compliments because "they seem too clichéd." And keep it brief: Ok Trends found that the ideal first message length is only 200 characters, or one minute's worth of typing for the average writer.

"The amount of times that people are approached when they have photos is multitudes more than when they don't," says Gian Gonzaga, Ph D, e Harmony's senior director of research and development and head of e Harmony Labs. Leave behind group shots, which can make it confusing for other people to identify you, advises Spira, and choose a headshot in which you are smiling.