How do I make BillboardGUIs visible locally?

My game has the names of others hidden. It also has a team system. That team system allows you to see their names, but nobody that isn't in the team will be able to. For this I would need the GUI to be local, so that only team members can see the names of the others over their heads. I have the system for determining members, all I need is to be able to place GUIs over their heads that are only seen locally, or have GUIs there that change their visibility locally. How do I do that? I know it's LocalScripts but I haven't had luck with changing properties of things locally.