trust your gut 相信你的勇气；相信你的直觉

【例句】
In an interview, don't grill them about it, but keep your eyes and ears open and trust your gut.
面试时，不要对这种问题刨根问底，但一定要仔细观察，并且相信自己的直觉。

If you get a bad feeling or you don't think they are the best fit, trust your gut and find someone else.
如果你感觉不好或者你认为他们并不是太合适，相信自己的直觉，找找其他人。