他从小就性格孤僻，不太愿意跟别人说话。

Tā cóngxiǎo jiù xìnggé gūpì, bú tài yuànyì gēn biérén shuōhuà.

He has been withdrawn since childhood and is not very willing to talk to others.

她看起来有点孤僻，但其实内心很善良。

Tā kàn qǐlái yǒudiǎn gūpì, dàn qíshí nèixīn hěn shànliáng.

She seems a bit withdrawn, but she is actually very kind-hearted.

不要因为他孤僻就觉得他不友好。

Bú yào yīnwèi tā gūpì jiù juéde tā bù yǒuhǎo.

Don't assume he is unfriendly just because he is withdrawn.