えへへ

interjection

heh heh heh; tee-hee; giggle

A soft, slightly embarrassed or sheepish laugh, often used when someone is caught doing something silly or is being playfully modest.

• えへへ、バレちゃった。

  Heh heh, you caught me.

• 「すごいね」と言いわれて、彼かれはえへへと笑わらった。

  When told 'That's amazing,' he chuckled sheepishly.