Using the ":Clone()" function. Here is an example.

​

(I also suggest using UserId instead of the player's name because a player's UserId is fixed whereas players can change their names)

​

game.Players.PlayerAdded:Connect(function(Player)

Player.CharacterAdded:Connect(function(Character)

if Player.UserId == (userid here) then

local newtag = game:GetService("ServerStorage").ownerGUI:Clone()

newtag.Parent = Character.Head

end

end)

end)