占小便宜

zhè lèi rén de pǔ biàn tè zhēng jiù shì tā men bù zhēn chéng ài zhàn xiǎo pián yi huò zhě bù jiǎng wèi shēng

这类人的普遍特征就是他们不真诚，爱占小便宜，或者不讲卫生。

Some of the more common traits in this category might be unfaithfulness, freeloading, or lack of personal hygiene.