Translation of "Xiao" in Chinese

My name is Xiao Yu.

我叫小雨。

My classmate, Xiao Ming, has strong managerial capability.

小明同学管理能力很强。

Xiao Yu, this is Juan, and I am Juan's friend.

小雨，他是胡安，我和胡安是朋友。

I think I've seen that person next to Xiao Li before.

小李旁边的那个人我好像在哪里见过。

If and only if the ice-cream is vanilla flavour will Xiao Wang eat it.

当且仅当冰淇淋是香草口味，小王会吃这个冰淇淋。

Xiao Wang, can I use your bike? Forget I said that, you are riding it!

小王，我可以用一下你的自行车吗？那没说的，你骑走吧！