Longer hair should be slicked back with hair gel. Try to use a product that gives it a greasy shine.

Tuck the black collar shirt into the suit pants. Secure the pants with suspenders. The shirt should be bottoned all the way to the top.

Tie the tie. After finishing, poof out the tie below the knot as much as possible.

Put on the suit jacket and button it up all the way.

Fold the handkerchief into a triangle and put it into the jacket pocket. It should not be ruffled, but should lay flat against the chest.

Put on the fedora and shoes. Optionally, carry around a violin case as well.