You will need: 

Jeans or bib overhalls
Old shirt
Old hat
Cane
Flour for your hair
Removeable teeth (optional)
Glasses

Instructions

A.  Dress your old man.  Roll up the jeans to make a cuff or wear bib overhalls 

B.  Put some flour in your hair to make it appear grey 

C.  Put on the old hat and walk with the cane.