Hi Ruby,
I'm so glad you're getting away from London for a few days to come and see me in Prague.
It was difficult when I first moved here, because I didn't know anyone and I didn't even speak the language, but I'm getting through it now. I'm making some great Czech friends. I told them about you, and they can't wait to meet you. I'm sure you'll get on with them.
Anyway, when you arrive, take the 119 bus from the airport, and remember to show your ticket when you get on the bus.
Take the bus when you reach Dejvická station, then take a metro train to Muzeum station. Call me when you get to Muzeum and I'll come to meet you.
I'm really looking forward to seeing you.
Love, Ella