attentive
at-ten-tive
adjective
Showing consideration for others; polite and helpful.
"The staff were attentive to our every need."
adjective
Paying close attention; listening or watching carefully.
"The attentive audience absorbed every word."
Thesaurus
Synonyms: solicitous, observant, intent, enwrapped, heedful, rapt, wrapped, captive, absorbed, advertent, oversolicitous, engrossed
Antonyms: heedless, inattentive, unheeding