もじもじ

adverb, noun or participle which takes 'suru'

bashfully; hesitantly; fidgeting

Describes someone who is shy, embarrassed, or unable to act decisively, often accompanied by small restless movements. Used with する to mean 'to be bashful/hesitant/fidgety'.

• 彼かれはもじもじしながら自じ己こ紹しょう介かいをした。

  He introduced himself bashfully, fidgeting.