observe

defer (to), submit (to), surrender (to), yield (to)

accede (to), acquiesce (to), agree (to), assent (to)

attend, hear, heed, listen (to), mark, note, notice, regard, take, watch

bless, consecrate, sanctify, solemnize

fete (or fête), honor, laud, praise

memorialize, remember

behold, look, perceive, regard, see, view

gape, gawk, gaze, glare, goggle, look on, peer, rubberneck, stare

guard, wake, ward

bird-dog, monitor, study

spy

espy, glance, glimpse, peek, peep

commentate

articulate, express, say, speak, state, talk, tell, utter, verbalize, vocalize

conjecture, daresay, guess, speculate, suppose, surmise

identify, make out, pick out, pick up

attend (to), consider, heed, mark, mind

study, watch

examine, inspect, scan, scrutinize, survey

glance (at), glimpse, peer (at)

consider, contemplate, mull, ponder, weigh

comply (with), conform (to), keep, obey, respect

attend (to), hark (to), hear, hearken (to)

mark, notice, see