They do all the things Kichi listed, and more. All they do is basic chores that they would have been doing for their own houses. Now it's been 2 weeks, and they have 37 missions done.
Ray: THESE PAST 2 WEEKS HAVE BEEN SO BORING. COME ON KICHI SENSEI! LET'S DO SOMETHING COOL!
Nanami: I don't complain a lot, but these missions aren't exactly ninja-like sensei. Renjiro: Let me translate what she meant. WHY ARE WE DOING OTHER PEOPLES CHORES?!
Kichi: There is a very simple answer to that question. The chunin exams need you to have 10 missions done.
Renjiro: Then why did we do 37.
Kichi: what can I say I'm an overachiever. Anyway time for your first real mission.