Hello. I want to make that a Block with the name "Part1" detect if a Block with the name "Part2" touch the Block(with the name "Part1"). How it works?

Part.Touched

Touched allows you to fire a function when one part touches another.

How do I do it?

Check if the Part it touched is called Part2

local Part1 = workspace.Part1;
Part1.Touched:connect(function(hit)
	if hit.Name == "Part2" then
		-- Touched!
		print("Touched")
	end
end)

This checks if a Part in Workspace touched a Part called Part2 and prints Touched if it did