Creating a Character Stats display help?

Hi all, So today I'm trying to make a GUI that appears with a characters information when someone mouses over that character. So far I've only gotten it to work with a tool in hand. My goal is to not have to have any tool involved and just be able to mouse over the character and obtain his name and put it on a GUI.

Here's what I have so far:

wait(3)

local TOOL = script.Parent

local SCREEN_GUI = TOOL.ScreenGui
local FRAME = SCREEN_GUI.Frame

local TARG_LABEL = FRAME.NameLabel




function getPC()
    local player = TOOL.Parent.Parent
    local char = player.Character

    return player, char
end

function canUse(part)
    if part == nil then
        return false
    end
    local bool = false
    return bool
end


function onMouseMove(mouse)
    local targ = mouse.Target

    TARG_LABEL.Text = ""

    while targ == nil do
        wait(10000000)
    end

    if canUse(targ) and targ then
        if targ.Locked and targ then
                TARG_LABEL.Text = targ.Name
                --This shows what its looking for
        else
            end
    else 
            TARG_LABEL.Text = targ.Name
        end
    end


function onSelected(mouse)
    local player = TOOL.Parent.Parent
    local p_gui = player.PlayerGui

    SCREEN_GUI.Parent = p_gui

    mouse.Move:connect(function()
        onMouseMove(mouse)
    end)

end

TOOL.Selected:connect(onSelected)

Right now it grabs a brick name and displays it's name, but eventually I'll try and change it to get a characters name.