There is a frum lady who owns a store down the street from me. I pass it regularly. I always wave and/or wish her a good morning/evening. The other day one of her employees was outside on his break. I said “good morning” to him. He stopped me and said nobody ever did that before. He went on and on about how happy he was I said “good morning.”
So, yes, Jews being nice to each other apparently is amazing!