To move from place to place, doing trivial, random, or aimless tasks or activities. It makes me sad thinking of my granddad puttering about in that big old house all by himself. I didn't have a specific plan while I was in London, so I spent most of the time just puttering about.
See also: putter
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.