How do you know when to stop eating?

I clearly don't know when to stop eating in Taiwan.  But sometimes there are signs that its time put the chopsticks down (your throat while holding your head over the toilet) like....

when you've eaten a tree's worth of lychees and your "chi" is en fuego

when your belly starts to look like the 2" thick fat pork belly

when the owner of the all you can eat hot pot place tells you your time is up, you can not put anymore in the pot, you can not have dessert, you must pay now and leave

its your 4th stop for food and its only 10am

everyone at the dinner table insists on setting you up with every available guy they know (00ps I think that only applies to my pathetic self.. don't even need the chopstick down throat for this one) 

when the fish you're about to eat is mummified 

and even when its your fourth bowl of shaved ice in 3 days... but its so good...