Tings you might be able to do in America that you would not normally do in Germany:
Attend a private university in virtually every city or state in the union.
Be a member of a church without paying church taxes.
Drive a car that doesn't have a TUV vehicle inspection sticker.
Own an TV, radio or computer and not pay an annual license fee.
Wear sandals, flip flops, or thongs as normal footwear.
Jaywalk.
Drink tap water at a restaurant without arousing anger in the server.
Put you shod feet up on a table or neighboring seat in a train.
Wear a flag pin on your lapel.
Mow your lawn in the early afternoon.
@jacksondisuja,
I know several of those to be completely true, at least circa 1967 when I was there.
Very few Germans use their credit cards in everyday life. Many supermarkets like Aldi and Lidl don't accept them. I know many Germans who don't even own a credit card, and when they do, they pay every month's bill completely.
@jacksondisuja,
jacksondisuja wrote: Many supermarkets like Aldi and Lidl don't accept them.
Most supermarkets, including Aldi and Lidl, except them.