I'm hanging around I'm waiting for you.

我逛来逛去，一直在等你。

youdao

I'm just going to be hanging around twiddling my thumbs.

我正要无所事事地旋弄拇指。

《柯林斯英汉双解大词典》

I've been walking around with my head hanging down. Wondering what I'm gonna do.

我会答应你的一切要求。我一直低着头徘徊。

youdao

And this movie, i don't know if I would recommend it that much, it's... Perhaps I'm being too pC, but I'm not convinced that for the modern woman, hanging around waiting for your prince to come is really a good strategy.

这部电影我真不知道怎么推荐给大家,也许我已经老了吧,但我课不觉得现代的女性四处游荡,等待你的白马王子出现是个好策略

耶鲁公开课 - 博弈论课程节选