-Oh, hello! You have already came back! I'm very glad to see you!

Далее можно в любом порядке задать вопросы (можно охать и ахать, вне зависимости,что ответит собеседник):

-What country have you been to?

-What cities did you visit?

-What city did you like most of all?

-What impressed you the most?

-Did you visit any historical monuments? What monuments did you see?

-What souvenirs have you brought?

-Did you eat any traditional food? What food was it?

-Did you see any beautiful landscape?

-Did you go on a guided tour?

-What was the weather like?