Hi fashion87! Welcome to Ask.com! When you find someone who asks great questions or gives great answers, you can follow them by going to their profile and clicking on the 'Follow' link at the top of the screen. Once you are following them, you will be able to see all the questions they ask or answer by clicking on your "Connections" link on the left-hand side of your screen.
It means that if you like what the person had to say about something & you find it helpful then you could follow that person, since you can not search people on this site, that's basically what the Follow button is for & give good advice to other people on their questions & you might gain a follower/followers as well! Welcome to Ask.com! :)