I think it’s natural, when I hear an American speaking the sound lifts above all others and I am always 100% sure that they are Americans. It’s just so obvious. We do have an accent and to my ears I can’t say it’s so cute. There have not been so many which means the ones I do hear stand out even more.
I hopped on a HOHO bus for a quick one hour around Conwy and out to the surrounding seaside resort town of Llandudno.