turn up
source: [ぴょこっ｜無料GIF画像検索 GIFMAGAZINE 3509721]
>Turn up means to appear or arrive unexpectedly, while Show Up depicts to arrive or to appear. There is no surprise in Show Up. We knew/ expected it to happen.
〈紛失物が〉(ひょっこり)出てくる; 〈物が〉 «…の中に» ある, 見つかる «in»
e.g. all the missing documents had turned up.
〈人が〉現れる; «…のために» 姿を現す(show up) «for»
e.g. half the guests failed to turn up.