在国外回家乡，带什么手信好啊？

The most popular gift in Shanghai is vitamin and health products. Lots of overseas Chinese in Canada and USA bring back these stuff to sell to friends to earn enough to cover the air fare.

Of course, you can give away as gift.

当然要看你在什么国家啦，每个国家特产不一样啊。
一般比较保险的总归是化妆品、工艺品、小饰品、服装配件。

建议你带当地民族特色的东西回来,也就是在国内买不到的东西,尽管没有高科技含量和精美的装饰,但送人是不错的东西.