Hamlet, the Cheese Danish.
Someone who hangs around downtown after the stores are closed and appears to be deliberately wasting time is said to loiter, a verb that connotes improper or sinister motives (the police warned the boys not to loiter). To dawdle is to pass time leisurely or to pursue something halfheartedly (dawdle in a stationery shop; dawdle over a sinkful of dishes). Someone who dallies dawdles in a particularly pleasurable and relaxed way, with connotations of amorous activity (he dallied with his girlfriend when he should have been delivering papers). Idle suggests that the person makes a habit of avoiding work or activity (idle away the hours of a hot summer day), while lag suggests falling behind or failing to maintain a desirable rate of progress.
~ The New Oxford American Dictionary