how do I test what mouse.Target/Hit is?

A sequel to my original question So, I am making a game where something happens when the player looks at a monster(weeping angel,etc) but I can't seem to find the right code. What I want is that when the player's mouse is over the monster, it registers that. here is some very limited sudo code

if mouse target = monster then
print("seen monster")

Edit: so now my code looks like this: Local script:

local player = game.Players.LocalPlayer
local mouse = player:GetMouse()
while true do
if mouse.Target:IsDescendantOf(workspace.Monster) then
	    print("pointing at monster")
	end
wait()
end

And now it Edit: I am an idiot. sorry, everyone. I thought I tried the script, but I didn't do it correctly. I apologize. I will try to avoid do that again.