[nommm-nommm]

>As a personal not born in US, I am always unsure how much I should tip.

Honestly, as an American, I think everyone has different ideas, even those born here. You can see it right here in these comments! That contributes to the anxiety people have around here about tipping. There's even a joke about it on Seinfeld - "How much do you tip a chamber maid?" It was a long back and forth about how much is customary to tip a hotel chambermaid and nobody could agree on it. The person who suggested the most ended up being a criminal who the local news described him as a "generous tipper." Later on George realizes he forgot to tip her entirely.

When I was growing up (poor, lower class) I was taught that 10% was a customary tip. When I got to be an adult and I started my job as a software engineer I've noticed people seem to tip 20% so I moved to 20%. I don't know if its just my family who tips 10% or its just the upper class who tips 20%? Who knows? Someone here even suggested 10% and got downvoted for it.

I wouldn't think to tip movers. We had some people come with a truck and haul away some stuff, were we supposed to tip them? Were we supposed to tip the furniture delivery people? :/ I am sorry if I accidentally stiffed them.