The attitude (pose) of the beast above is greyhound passant (striding)
rubber nose—when resting, the nose can crumple or twist into the floor or wall
legs up—greyhounds can sleep with legs in the air (some people liken this to dead roaches)
rooing—generally quiet, they can howl a chorus, and one greyhound will do this at the example of another, whether dog or human initiated; their call is a 'roo'
leaning, nudging, head butting—either to demand attention, or more commonly to show affection. Greyhounds do not normally lick, or jump upon you; they do touch you physically by pressing their bodies against you.
counter surfing—the height of a greyhound allows him to stretch his head onto tables, stoves, and counters. They are curious, and look for food. They are sly, and look for opportunity. Lay a cake on the table, and turn around, and see some of the cake gone. Make a sandwich with four slices of meat, reach for lettuce or a condiment, and there is three slices of meat.
collecting, hiding, gathering—toys and other objects will be brought into the sleeping area
playing out of sight—a toy, or shoe, or something will be played with while you are not around, or looking; when sight is caught of you being a witness, activity stops
sitting—greys' anatomy is not conducive to sitting, they can be taught (grudgingly). Regular sitting has both hams off the ground, i heard a girl call this a 'butt hover'. Some greyhounds can sit longways with hips apart in a sphinx position
eating and digestion—with no other dogs around, the tendency is to hoover up the food; to the point of swallowing air, coughing, choking, yet continuing. The hounds make several noises, but as Adam Savage is fond of saying, 'the flatus' is often silent, or a whisper, but if names were given for mannerisms, Houndie would be 'Foul-fart'.
tongue lolling—some do, some don't. Those that do, look silly and goofy.
smiling—for those that do, some can be open mouth extra wide; some will bare teeth, which would look menacing in other dogs; some will chatter their teeth
ears—they are wonderfully velvety and soft, and very mobile, and be independent from the other. Each ear can be bent, folded inside out, up, back (in other dogs this is a threat, not greyhounds). They can both go in the same direction, or a different direction—randomly. O, and the insides are both tattooed with numbers indicating birth and litter.
zoom time—although not racing, they are born to run, and every once in a while need to let go—zoom, zoom. At top speed, the ground thunders. Turns are made on a dime, with turf flying.
bow, stretch, shake—mine at least does this often, especially after getting up
propeller—the tail does not just wag side to side, it can go round and round
nonchalance attention focusing—like other dogs, 'o, something moved—wow!'. Then again, i don't care.