Difference between Mill About and Lurk

MILL ABOUT vs LURK: NOUN

Lie in wait, lie in ambush, behave in a sneaky and secretive manner
Be about
Wait in hiding to attack
To remain concealed in order to ambush
To remain unobserved
To hang out or wait around a location, preferably without drawing attention to oneself
To view an internet forum without posting comments

To keep out of sight.
To lie hidden; to lie in wait.
To read but not contribute to the discussion in a newsgroup, chatroom, or other online forum.
To exist unobserved or unsuspected.
To move furtively; sneak.
To wait out of view.

To lie in concealment; hide or keep out of sight, as for ambush or escape; skulk.
To be latent or undisclosed; be withdrawn from open manifestation; exist unperceived or unsuspected.
To monitor a web forum or similar without making your presence pubilc
Be about a place without any apparent purpose

Tumultuary, Commove, Loiter, Mill around, Mess about, Lallygag, Hang around, Footle, Lurk, Lounge, Tarry, Linger, Lollygag, Loaf, Mill

Mill about, Lie in wait, Mess about, Lallygag, Lounge, Ambuscade, Ambush, Scupper, Bushwhack, Lollygag, Tarry, Waylay, Loiter, Skulk, Linger

Tumultuary, Commove, Loiter, Mill around, Mess about, Lallygag, Hang around, Footle, Lurk, Lounge, Tarry, Linger, Lollygag, Loaf, Mill

Mill around, Mill about, Mess about, Lie in wait, Lallygag, Hang around, Footle, Lounge, Ambush, Scupper, Lollygag, Tarry, Loiter, Skulk, Linger

As the fish mill about the boat, anglers then use anchovies, mackerel or squid to catch them.
We all got in, and drove off to the apprentice house at Litton Mill, about six miles from Buxton.
There's coming and going and some creatures seem to mill about in dusty confusion.
We see a wide view of the elaborate wedding, guests mill about the banquet hall.
English Consulate Building, many Japanese soldiers walk on the street and mill about smoking cigarettes, joking, laughing.
Commuters could grab tickets at the box office or mill about while waiting for their trains.
Also, the rumor mill about how awful they are works too.
Passengers mill about as the cancellations and delays take effect.
Other Militia members mingle and mill about the clearing.
After running this mill about two years, Mr.

And inflation fears still lurk just below the surface.
Behind each tree or log might lurk a savage.
What may lurk beneath our toes in the surf?
Even worse, dangerous dancing adversaries lurk in the shadows!
Qaeda still lurk near the permeable Afghan border.
Highly accurate ballistic missiles lurk in every theater.
Core Rulebook IIIFearsome and formidable foes lurk within.
But the virus can lurk in dormant mosquitoes.
Remove any bruised areas where bacteria may lurk.
Nary Hungummory Poses the Question, Does Essential Savagery Lurk Beneath the Skin of Civilization, or Does Essential Civilization Lurk Beneath the Skin of Savagery?