因为祈使句非常直接，语气很强，所以使用时要注意语境。为了让祈使句听起来不那么直接，可以使用
just
please
if you wouldn't mind
来柔和祈使句的语气。

Take a seat. = Sit down.
Please take a seat.

Open the window. 打开窗户。
Open the window, please, if you wouldn't mind. 如果你不介意的话，请打开窗户。

Open the window a little more. 把窗户再打开一点儿。
Open the window a little more, please, if you wouldn't mind. 如果你不介意的话，请把窗户再打开一点儿。

[我和朋友Marina]
A: Marina, are you ready?
M: Just give me a minute, please.