How do I make it to where when people click the About button it will open a page about us?

I have a side menu that can respawn, teleport, say about us and a help section. I just don't know any script to get it to show about us.

Use Gui.Visible when the about button is clicked

Put this is your button as a local script

script.Parent.MouseButton1Click:Connect(function()
script.Parent.Parent.Frame.Visible = not script.Parent.Parent.Visible
end)

You can change frame to your frame gui name.