yǒu de kàn shēngāo, yǒu de kàn niánlíng, yǒu de xūyào zhèngjiàn, mǎi piào qián yào quèrèn

有的看身高，有的看年龄，有的需要证件，买票前要确认。

Some depend on height, some on age, some require ID; confirm before buying tickets.