People fidget. They are compelled to look engaged in an activity, or purposeful. Vampires can just occupy space without feeling obliged to justify it.
Charlaine HarrisSookie, what have we done? And to whom?" "I killed a chicken. And I cooked it." "Sookie, Sookie. My bullshit meter is reading that as a false." -Eric Northman, Sookie Stackhouse
Charlaine Harris