If player is in Region3?

So when the player is in the Region, a Gui becomes visible, but would I have to do to make it false when not in the Region?

region = Region3.new(Vector3.new(0,0,0), Vector3.new(10,10,10))
p = Instance.new("Part",game.Workspace)
p.Name = "Region"
p.Size = region.Size
p.CFrame = region.CFrame
p.Transparency = 1
p.CanCollide = false

while wait() do
for i,v in pairs(game.Workspace:FindPartsInRegion3(region,nil,100)) do
if v.Name == "Torso" then
print (v.Parent.Name)
game.Players.LocalPlayer.PlayerGui.ScreenGui.TextLabel.Visible = true
end
end
end

Create an else statement and be a bit more specific finding the player rather than using "Torso"

local player = game:GetService("Players").LocalPlayer
region = Region3.new(Vector3.new(0,0,0), Vector3.new(10,10,10))
p = Instance.new("Part",workspace)
p.Name = "Region"
p.Size = region.Size
p.CFrame = region.CFrame
p.Transparency = 1
p.CanCollide = false

while wait() do
	for i,v in pairs(workspace:FindPartsInRegion3(region,nil,100)) do
		player.PlayerGui.ScreenGui.TextLabel.Visible = false
		if v.Name == "Torso" and v.Parent.Name==player.Name then
			print (v.Parent.Name)
			player.PlayerGui.ScreenGui.TextLabel.Visible = true
		end
	end
end