Scroll to the bottom of the page - ANY RootsChat page!
Under the heading "Your Tools", you will see "Surname Interests".
Click on that to take to RootsChat's own Surnames Interest Table (SIT).
Once there you can check your surnames, and see who else is researching them - Quick Search, then Initial Letter of Surname, then click on the surname of choice.
And you can also add your own interests - then others can find you!
Click on a user name to find the ability to send a Personal Message (PM) - but you need 3 posts to do this.