Always had very good reception to being English in Germany, starting back in 67 . Had one bad reaction once . I had a friend (german) who did a school exchange with in 63 . He was getting married, and I supplied limos for weddings (proper ones Rolls royce/daimlers) as part of my business at that time. So said I would attend wedding and supply the bridal car.
I had a replica vintage rolls royce chauffeur uniform that I used so wore that. It had peaked cap, high collar, britches, and black leather knee boots , if you can visualise , and was light grey in colour . Walking from car park with groom , one elderley woman
spat on floor as I went past, and another young man , gave me hitler salute !! so still relevant then , but this week I happened to give a lift to a young german couple hitchhiking , and they didnt even know who Herman Goering was untill I explained so hardly taught now and 65 years on not very relevant to germans .