不过说真的，最难的部分就是站立不动了。

Really, the only hard part is standing still.

youdao

当有东西急速靠近时人的本能反应是马上站立不动。

The instinctive response to being approached rapidly is to freeze.

youdao

站立不动也是如此：四处走动能促进演讲者的血液循环，帮助消除紧张。

So will standing still: Moving around will get your circulation going and help you burn off the jitters.

youdao