Restaurant tipping in the US is fairly standard and shouldn't be too confusing or stressful. But I know exactly what you are talking about with other situation

Restaurant tipping in the US is fairly standard and shouldn't be too confusing or stressful. But I know exactly what you are talking about with other situations. For what it's worth, Americans are sometimes uncomfortable and don't know what the heck to do either! Hotels can be especially confusing. Basically restaurants are the only place where tips are absolutely expected and you can make yourself look bad by not tipping. For anything else, if I'm not sure I usually just check a travel guide or go on forums and ask other people what they do. I would do this if I travel to any country, just ask around at how you should behave if you want to fit in.