What is the best way to attach a part (hitbox) to your body?

I have not been on ROBLOX coding for a while, so I am going to make a simple game of tag! However, what is the best way to have a part that stays directly on your body forever? Like a hitbox.

The best method would probably be Welds or WeldConstraints, but I don’t know much about WeldConstraints so you’re gonna have to do more research there if the code below doesn’t work (They’re also newer so I imagine they’re better)
Here’s a function you can call to weld two parts together:

local function WeldTo(P0,P1)
	local C0 = P0.CFrame:inverse()
	local C1 = P1.CFrame:inverse()
	local New_Weld_Part = Instance.new("Weld",P0)
	New_Weld_Part.Part0 = P0
	New_Weld_Part.Part1 = P1
	New_Weld_Part.C0 = C0
	New_Weld_Part.C1 = C1
	New_Weld_Part.Name = P1.Name
end

Note: You may also have to use Motor6D’s instead, which is as simple as changing the “Weld” to “Motor6D”

(I’m not very good with welds, someone smarter than me should say something here)

Ah okay I’ll try that! Thanks!