dài péngyou cānjiā jùhuì shí, rúguǒ nǐ rènshi hěnduō rén, bié bǎ péngyou yīgè rén liàng zài pángbiān

带朋友参加聚会时，如果你认识很多人，别把朋友一个人晾在旁边。

When bringing a friend to a party, if you know a lot of people, don't leave your friend standing alone