Vocabulário para Esboçar Surpresa em inglês

• Gee - "Really?" - "Gee, that's super!" - Surprise, enthusiasm, or just general emphasis.
• Oops - "I didn't mean to do that" - "Oops, I knocked your cup over" - Being surprised at or acknowledging your own mistakes.
• Wow - used for showing that you are very surprised or impressed by something.
• Well - used for expressing a feeling such as doubt, surprise, or anger.
• Hey - used for getting someone’s attention or for showing that you are surprised or annoyed
• Oh - used for expressing an emotion such as surprise, anger, or happiness
• Aah - used for showing that you are happy, satisfied, or surprised.
• Why - somewhat old-fashioned — used at the beginning of a statement especially to express surprise.

Para quem gosta de curiosidades da língua, dizem que “why” acabou dando origem à expressão “uai” em português – muito comum em Goiás e Minas Gerais – devido ao convívio com ingleses no Brasil no século 19.

Uai: Bras. Fam. Indica espanto, surpresa, susto, impaciência etc. [Aulete]
Why: used to express surprise or anger, lack of patience, etc [Cambridge e Oxford].