Answer: raptly

AnswerCrossword Clue
RAPTLYAttentive way to listen
RAPTLYWay to be engrossed
RAPTLYEcstatically
RAPTLYWith total attention
RAPTLYWith full attention
RAPTLYOne way to listen
RAPTLYWith riveted attention
RAPTLYWith great attention
raptlyRAPT, deeply engrossed
raptlyengrossed