He wandered a lot. Not usually while he was home, but when the time presented itself and he was in a new location before starting a new job, or before he was scheduled to leave. Staying in one place was too suspicious at times, though some places took his 'look' in strides, gave him attentions, asked him questions. That was no better sometimes. So he made wandering a pastime of sorts.
His focus mainly centered on terrain. Particular landscapes could prove resourceful in the heat of battle if he were to ever return there. Monuments, gardens, parks, fountains. The environment...