Send a thank you note or a gift.

送一个感激的便签或者礼物。

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Write a thank you note to your mate .

给你的爱人写一封感谢信。

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Either way, you send a thank you note and check your inbox compulsively for a week, waiting not-so-patiently for some sort of response.

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Send a thank you note or gift basket to their spouse.

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Post a thank you note on their door in their honor.

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