attentive Synonyms

heedful mindful circumspect regardful intent watchful observant thoughtful scrupulous sharp respectful sentient reverential rigorous sensory sedulous ruminative ruminant qui vive rapt observative observing open-eyed overcareful overcautious painstaking philanthropical polite possessory prudent public-spirited punctilious sleepless solicitous studious leery bound up painstakingness hard-working reckful on the ball on guard on the job on the lookout oversolicitous self-aware sheeplike unsleeping apperceptive beady-eyed