Online, is there any equivalent to the Japanese web slang of ending a sentence with "w" or in English using "lol" just to indicate good-nature/humor? I was wondering because while I am decent at speaking Chinese, I've just recently started sending messages online using it (16 years late lol). I've ended one sentence with "笑" but even that was borrowed from my Japanese interactions and not Chinese. I've also ended a few with "w" like in Japanese, but that just feels weird and (rightfully) out of place. Is there any ending that's more common so I can become more undercover on Chinese language twitter? Thanks!
The best i can think of is 233.


  It is originated from Chinese popular forum side 猫扑, the 233 is the number of emoji. Then it started to get viral to other forum side, people often lengthen the 3 behind the 233. The longer the 3, the funnier it gets to.


No.233 emoji is a dog having the face expression of >_&lt; , see below picture:



You would have something like this: 

233333333333333333333333333333333