acknowledge, act, answer, answer back, be affected, be in tune, be inspired, be involved, be moved, behave, care about, catch the flame, catch the infection, change color, color with emotion, come back, come back at, dig, echo, empathize with, flash back, function, give acknowledgment, give answer, identify with, operate, perform, proceed, reciprocate, recur, reecho, rejoin, relate to emotionally, renovate, reply, respond, retaliate, retort, return, return answer, return for answer, reverberate, revert, riposte, say, say in reply, share, shoot back, snap back, sympathize with, take, take the bait, talk back, turn, turn back, work