to bow to one―make a bow to one―make an obeisance to an exalted person―salute one―(西洋婦人なら)―make a curtsy―drop a curtsy
to thank one―offer one's thanks―tender one's thanks―return one thanks―express one's thanks―express one's gratitude―acknowledge a favour
to reward one handsomely―give one a handsome reward
篤く礼を言う
敬意を表すこと
the act of expressing respect
with appreciation