noun, noun or participle which takes 'suru', transitive verb, intransitive verb
double take; second glance
Looking at something, looking away, then quickly looking back because of surprise, disbelief, or noticing something unusual. Often used as a suru verb (二度見する).
あまりに変な格好だったので、思わず二度見してしまった。
The outfit was so strange that I couldn't help but do a double take.
彼女
She suddenly cut her hair, so I did a double take.