UK punctuation
Shift+2 produces double quote, Shift+3 produces £ and the quote key’s shifted character is @. The extra key beside left Shift holds backslash and vertical bar; # and ~ occupy the key beside Enter.
When a UK key produces a US symbol
If Shift+2 produces @ instead of double quote, compare the selected operating-system input source with the board legends. Use the checker to inspect the mismatched positions and the input-layout guide to choose UK English.