彼はこの店の常客だ。
He is a regular customer at this shop.
その老舗の料亭には政財界の常客が多い。
That long-established restaurant has many regulars from political and business circles.
常客の顔と好みを覚えるのも店主の仕事だ。
Remembering the faces and tastes of regular customers is part of the owner's job.