How do you translate 笑っておく?


I was thinking about something like: " I will laugh" but it seems kinda
unnatural




I guess nobody could post an answer for sure until further context provided,
but the situation I first came up with looking at the phrase 笑っておく is "do
something superficially or for manners' sake", as in (loose translation):

> 英語のジョークはちっともわからなかったが、周りが笑っているので笑っておいた。  
>  _I didn't understand any English joke, but people around me were laughing,
> and so did I._
>
> 上司がつまらない冗談を言ったが、笑わないのも失礼なので笑っておく。  
>  _My boss made a lame joke, but I decide I'm going to laugh to save his
> face._

