ON WALKING #1
To WALK AT ROVER'S is to wander aimlessly with no fixed abode.
As Stern & Stern wrote in their 1992 Encyclopedia of Pop Culture, Michael Jackson's signature MOONWALK "became the single best-known bit of celebrity body language since the four Beatles."
The notion of the WALKING WOUNDED (i.e., prisoners who could make their own way to the medics) originated during the horrors of World War I.
To WALK THE CHALK is a military and police term for pacing along a chalked line to demonstrate one's (in)sobriety. WALK YOUR CHALK! was an instruction to quit one's lodgings. It might originate from the practice of chalking the doors of houses that were to be requisitioned by the army or monarchy.
SLEEPWALKING (also noctambulation or somnabulism) tends to occur in the deep stages of NREM sleep and tends to last from a few minutes to half an hour. During episodes of sleepwalking, individuals are usually able to perform complex motor functions and often have no memory of their actions when they awake.
Henry Wadsworth Longfellow (1807-82)