Nǐ zhège huóbǎo, zǒngshì zuò chū ràng rén kū xiào bù dé de shìqíng.
You clown, you always do things that leave people not knowing whether to laugh or cry.
Tips
memory
活 = alive / living + 宝 = treasure. A 活宝 is literally a 'living treasure' — someone so entertaining they're a treasure to have around, in a self-deprecating or affectionate way.