老实说。
lǎoshí shuō.
Honestly speaking.
他是个老实人。
Tā shì gè lǎoshí rén.
He is an honest person.
孩子很老实。
Háizi hěn lǎoshí.
The child is well-behaved.
他太老实,容易上当。
Tā tài lǎoshí, róngyì shàngdàng.
He's too naive and easily fooled.