I WANT TO IMPROVE MY ENGLISH WITH A GIRL OF MY AGE IN MADRID

I live in Madrid, I am 25 years old and I want to improve my English and help someone learn Spanish better. I would like to meet up for a walk in Retiro,have a drink... my level of English is B2, I was an Aupair in a town near London 2 years ago and I don't want to forget what I learned.