ひょこっと

adverb

suddenly; abruptly; impulsively

Describes a quick, unexpected action or movement, often with a light or casual nuance. Similar to ひょっこり but with a slightly more impulsive feel.

• 彼かれはひょこっと立たち上あがって部屋へやを出でて行いった。

  He suddenly stood up and left the room.

• 猫ねこがひょこっと顔かおを出だした。

  The cat abruptly poked its head out.