Subject + 打牌
The verb phrase 打牌 (dǎ pái) means "to play cards" or more broadly "to play tile or card games," including mahjong. The verb 打 (dǎ) is versatile and pairs with many game and sport nouns. This is the standard colloquial way to describe playing card or tile games in Chinese.
周末我们经常在一起打牌聊天。
zhōumò wǒmen jīngcháng zài yìqǐ dǎpái liáotiān.
On weekends we often play cards and chat together.
爷爷每天下午都去公园打牌。
yéye měitiān xiàwǔ dōu qù gōngyuán dǎpái.
Grandpa goes to the park to play cards every afternoon.
你会打牌吗?我教你。
nǐ huì dǎpái ma? wǒ jiāo nǐ.
Do you know how to play cards? I'll teach you.