How Do I Add Chat Interests to Chatroulette?

I'm sure most of the internet has heard about chatroulette. But there's something I cannot find out simply because it can't be typed into a google search! How do you make it so that you get matched up with say, someone that likes mlp. So you type in mlp as one of your likes and it connects you to other people with that like. The reason I want to do is this because there is a youtube I watch that does chatroulette videos where he meets his fans via this system. They type in his name as a like and he does as well. Therefor he gets connected to them and they can get onto his videos. I'm fairly certain this is a feature of chatroulette. But if it isn't, let me know if you are 100% positive and maybe I just mistook this site with omegle. Thanks in advance.