ingratiatingly

The waiter bowed ingratiatingly to the wealthy customers, hoping for a generous tip at the end.

(Chinese) 服务员向富有的顾客谄媚地鞠躬，希望能得到丰厚的小费。

She laughed ingratiatingly at all of her boss's jokes, even the ones that were not funny.

(Chinese) 老板讲的每一个笑话，甚至是不好笑的，她都逢迎地陪笑着。