I agree with Wroclaw and Krysia..bring a nice bouquet of flowers and maybe a small gift that can only be bought in England..like maybe a nice box of chocolates.
Good Luck to you and Krysia meeting your boyfriends family..be on you best behavior

and smile a lot

I remember when my hubby came to meet my parents for the first time...he brought my
Mom a bouquet of roses..I don't know what impressed her more, the nice gesture of
getting roses or that my hubby had on his Marine Corp. uniform...He was so handsome!