不好意思，洗手间在哪儿?

Bùhǎoyìsi, xǐshǒujiān zài nǎr?

Excuse me, where is the bathroom?

你在哪儿?

Nǐ zài nǎr?

Where are you?

我不知道应该要往哪儿走。

Wǒ bù zhīdào yīnggāi yào wǎng nǎr zǒu.

I don't know which way I should go.