There are over 13 million members at 3 somes, so the chances are that a whole cross section of the site's membership is going to have a lot in common with you. Giving you an instant start on initiating a chat with new people. Most members will have a full profile created which describes their own interests and also what they expect to see in a potential partner or friend.
There are also other attributes displayed in the profile as well as their photo of course, which will give you a really good overall picture of them and their lifestyle. By studying a member's profile you can gather a lot of info and determine whether you are going to have the sort of fun with them that you would expect.
This all gives you the starting point for an ongoing chat prior to maybe meeting up for a bit of naughty fun. The chat features on 3 somes give you some nice little touches like 'winks' and icons that allow you to express yourself in a very simple way, but also add a good laid back style of chatting similar to what you may already be familiar with if you use some of the various instant messenger applications.