Place it immediately after the reveal frame in a reaction edit, then follow with a clapping sound for applause or precede it with a fail sound meme when the amazement follows a near miss in the sequence.
關於此聲音
This is a very short voice clip of Owen Wilson saying 'Wow' in his unmistakable drawn-out delivery, lasting under a second. It lands as lightly stunned and amused rather than shocked, like someone quietly impressed by something they did not expect. The reaction feels dry, sincere and instantly recognisable.