standing there like a statue
Stava lì impalato senza sapere cosa dire o come reagire alla notizia.
He stood there, not knowing what to say or how to react to the news.
What are you doing standing there?
— Young Detective Dee - Il risveglio del drago marino (2013)
Don't just stand there!
— Demon Slayer: Kimetsu no Yaiba - Il Castello dell’Infinito (2025)