相比之下，哥哥更外向，弟弟则比较内向。

Xiāngbǐ zhīxià, gēge gèng wàixiàng, dìdi zé bǐjiào nèixiàng.

By comparison, the older brother is more outgoing, while the younger one is more introverted.

做销售工作，一般需要比较外向、主动的人。

Zuò xiāoshòu gōngzuò, yìbān xūyào bǐjiào wàixiàng, zhǔdòng de rén.

To do sales work, you usually need people who are more outgoing and proactive.

虽然他看起来很外向，其实内心很敏感。

Suīrán tā kànqǐlái hěn wàixiàng, qíshí nèixīn hěn mǐngǎn.

Although he looks very outgoing, he is actually very sensitive inside.