In my HIGHLY Respected Professional Opinion (LOL) somebody who doesn't know how to hang a painting, probably doesn't even know how to put on a condom, let alone tie a tie.

OK.

On a more serios note, you will NEED:

a stud finder

drill and drill bit

mercury level

Just a nail if mounting directly on to stud or nail and anchor if mounting on to drywall (sheetrock).

The "how to" part is easy to learn from YouTube.