adverb, adverb taking the 'to' particle, noun or participle which takes 'suru'
restlessly; nervously; fidgety
Describes a state of being unable to stay still due to anxiety, excitement, or impatience. Often used with する or と.
面接の前で、彼はそわそわしていた。
He was fidgeting nervously before the interview.
何か隠しているのか、彼女はそわそわと落ち着かない様子だ。
She seems restless and uneasy, as if she's hiding something.