Why doesn't the Text UI not update?

When I press the right button text only updates the text in the properties but not in the UI.

Here's the script:

local LeftButton = Parent.Menu.Frame2.LeftArrowFace
local RightButton = Parent.Menu.Frame2.RightArrowFace

local Value = 0
local ListGuyDude = {"Face 1","Face 2","Face 3","Face 4","Face 5","Face 6","Face 7","Face 8"}

RightButton.MouseButton1Click:Connect(function()
    local FaceNumbers = game.StarterGui.Menu.Frame2.Face1
    Value = Value + 1

    if Value == 1 then
        FaceNumbers.Text = ListGuyDude[1]
    elseif Value == 2 then
        FaceNumbers.Text = ListGuyDude[2]
    elseif Value == 3 then
        FaceNumbers.Text = ListGuyDude[3]
    elseif Value == 4 then
        FaceNumbers.Text = ListGuyDude[4]
    elseif Value == 5 then
        FaceNumbers.Text = ListGuyDude[5]
    elseif Value == 6 then
        FaceNumbers.Text = ListGuyDude[6]
    elseif Value == 7 then
        FaceNumbers.Text = ListGuyDude[7]
    elseif Value == 8 then
        FaceNumbers.Text = ListGuyDude[8]
    elseif Value > 8 then
        Value = 1
        FaceNumbers.Text = ListGuyDude[1]

    end
end)