Although the data shows this advice holds true for both sexes, it’s mostly directed at guys, because they are way more likely to talk about looks.

Maybe they set a more casual tone that people prefer, though I have to say, You had me at ‘what’s up’ doesn’t quite have the same ring to it.

There are many words on the effective end of our list like (double yes!

Online dating services allow users to become "members" by creating a profile and uploading personal information including (but not limited to) age, gender, sexual orientation, location, and appearance.

Most services also encourage members to add photos or videos to their profile.

Once a profile has been created, members can view the profiles of other members of the service, using the visible profile information to decide whether or not to initiate contact.

Most services offer digital messaging, while others provide additional services such as webcasts, online chat, telephone chat (VOIP), and message boards.

We analyzed over 500,000 first contacts on our dating site, Ok Cupid.

Our program looked at keywords and phrases, how they affected reply rates, and what trends were statistically significant.

On the other hand, more general compliments seem to work well: is almost always used to describe the way something or someone looks, and you can see how that works out. After all, the way you choose to start your initial message to someone is the “first impression of your first impression.” The results surprised us: perform better, bucking the general “be literate” rule.

In fact, it’s smarter to use no traditional salutation at all (which earns you the reply rate of 27%) and just dive into whatever you have to say than to start with all did very well.

So if you can’t bring yourself to deny the deity, consider opening yourself up to a whole wacky bunch of them.