observing &c. v.; alert, open-eyed; intent on, taken up with, occupied with, engaged in; engrossed in, wrapped in, absorbed, rapt, transfixed, riveted, mesmerized, hypnotized; glued to (the TV); breathless; preoccupied &c. (inattentive) 458; watchful &c. (careful) 459; breathless, undistracted, upon the stretch; on the watch &c. (expectant) 507.
     steadfast.
     [compelling attention] interesting, engrossing, mesmerizing, riveting. 
     Int. see! look, look here, look you, look to it! mark! lo! behold!
soho[obs3]! hark, hark ye! mind! halloo! observe! lo and behold! attention! nota bene [Latin], “N.B.”, note well; I’d have you to know; notice!  O yes!  Oyez! dekko[obs3]! ecco[obs3]! yoho! 
     Phr. this is to give notice, these are to give notice; dictum sapienti
sat est [Latin:  a word to the wise is sufficient]; finem respice[Lat]. 
     Attention!  Now hear this!  Oyez!; Achtung[German];
vnimanie[Russ][Russian]; chui[Japanese].

—­ p. 129 —­

     #458.  Inattention. —­ N. inattention, inconsideration;
inconsiderateness &c. adj.; oversight; inadvertence, inadvertency, nonobservance, disregard.
     supineness &c. (inactivity) 683; etourderie[French], want of thought;
heedlessness &c. (neglect) 460; insouciance &c. (indifference) 866.
     abstraction; absence of mind, absorption of mind; preoccupation,
distraction, reverie, brown study, deep musing, fit of abstraction. 
     V. be inattentive &c. adj.; overlook, disregard; pass by &c. (neglect)
460 not observe &c. 457; think little of.
     close one’s eyes to, shut one’s eyes to; pay no attention to; dismiss
from one’s thoughts, discard from one’s thoughts, discharge from one’s thoughts, dismiss from one’s mind, discard from one’s mind, discharge from one’s mind; drop the subject, think no more of; set aside, turn aside, put aside; turn away from, turn one’s attention from, turn a deaf ear to, turn one’s back upon.
     abstract oneself, dream, indulge in reverie.
     escape notice, escape attention; come in at one ear and go out at the
other; forget &c. (have no remembrance) 506.
     call off the attention, draw off the attention, call away the
attention, divert the attention, distract the mind; put out of one’s head; disconcert, discompose; put out, confuse, perplex, bewilder, moider[obs3], fluster, muddle, dazzle; throw a sop to Cerberus. 
     Adj. inattentive; unobservant, unmindful, heedless, unthinking,
unheeding, undiscerning[obs3]; inadvertent; mindless, regardless, respectless[obs3], listless &c. (indifferent) 866; blind, deaf; bird-witted; hand over head; cursory, percursory[obs3]; giddy-brained, scatter-brained, hare-brained; unreflective, unreflecting[obs3], ecervele [French]; offhand; dizzy, muzzy[obs3], brainsick[obs3]; giddy, giddy as a goose; wild, harum-scarum, rantipole[obs3], highflying; heedless, careless &c. (neglectful) 460.