I've gotten that one wrong too. The kettle heats the water, the teapot steeps the tea, and "biscuits" are cookies not bready things.
Also a lift is an elevator, a lorry is a truck, and you don't order a beer, you ask for a pint and they serve you the house variety unless you follow up with a brand name.
Cigarettes are fags, or at least used to be, which is good laughter for Americans ("faggots" referred to bundles of smaller sticks used to set fires, originally, and now are also some kind of hysterical pork-based food). Oh yes, and they have a Queen, which is quite enviable.
Really a lovely place and they do tea well. Also fond of Scotland, and I felt that Wales looked a bit like Texas, and had similar attitude toward the degree of consent inherent to sheep.