I work at bar in the evenings.
晚上我在一家酒吧打工。

I'm also fluent in sign language.
同时，我的手语很熟练。

Tonight a deaf man sat alone in my section , so I chatted with him in sign.
今天晚上，一个失聪的男人坐到了我负责的区域里，我用手语和他交谈了一会儿。

The table next to him noticed and asked me how long I've been signing, etc.
坐在旁边桌上的客人注意到我俩的交谈，问我学习手语多长时间了，还有其他各种各种话题。

Then I found this on their table.
随后我在那位客人的桌子上发现了一张便条。

“Thank you for what you do.
我为你所做的事情感谢你。

It absolutely matters!
你做了一件非常有意义的事情！

Good luck in finishing your degree!
祝你顺利完成学业！

I will be paying this forward.”
我已经预先帮你付清了钱。