It's not hard Acheron....just look to the right of anyone's post on our board and if you click on a person's name you will go to a 2nd screen. If you look to the upper left of the screen it will say things like:
See last 50 posts by that person and another choice is:
"Follow this member" if you click on this it will change to "Unfollow this member"
So you have now given a member mark to that person and will see their name in pink beside all posts they write.
It is important however after clicking on "Follow this member" to NOT click your back arrow or you will have removed the member mark.
You can try it now and see if it seems to work for you...
Another thing you can click on is "SEND A PRIVATE MESSAGE".....but you can only write a private message to someone IF.....you have a paid IHub account and I see yours is free which is fine. You can still give member marks no problem.