2) Don't speak with your mouth open

3) Take off your shoes

4) Put away mobile phone

5) Get your elbows off the table

6) do not throw rubbish on the street

Вот что они возможно сказали (согласно картинкам:
2. Talk him don't open the mouth!

3. Take off the mud from your shoes!

4. Put the mobile phone into your pocket!

5. Put the elbows on your knees!

6. Don't throw rubbish on the street!