How do I pick out 2 blocks that are touched?

Im a little confused on how you pick out 2 blocks that may have been touched. So as if, one block was touched, that counts. If the other block it touched, it counts too. Please help

If what you're trying to ask is how to have two parts' Touched events connected to the same function, all you have to do is declare the function as a variable.

function touched(hit)
	print("one of the two parts was touched by "..hit.Name)
end

part1.Touched:connect(touched)
part2.Touched:connect(touched)