光明正大的行为 meaning in English

aboveboard action
fair conduct
fair couduct

" you would call acting generously , knowing your conspiracy and not informing against you , that is what i should call becoming your accomplice
您所谓光明正大的行为，就是知道了你们的阴谋而不把它泄漏出去，但我认为这样做，就成了你们的同谋犯。
We will not constrain you to help us ; we enroll no one against his conscience , but we will compel you to act generously , even if you are not disposed to do so .
我们并不强迫您帮我们什么我们绝不勉强拉人参加我们中间来，但我们要强迫您作光明正大的行为，即使您本意不情愿那么做。