This is done immediately after phonetically doing the Sports Center theme music. (e.g. "Duh Nuh Nah, Duh Nuh Nah!")
Although this has been done by sports figures in the past, it was popularized by Hunter Klein aka "Kleinage".
If you ever see someone "point to their fans", punch them in the face for being a faggot. They don't have fans. Only Kleinage has fans.