We are new hosts too, Pavlos, and like you I became very nervous when our 2nd Guests, who had a party of 8 - the most we will book - didn't communicate with us once the booking was approved. It was obvious they hadn't read the House Rules or House Manual, because it asks that we be briefly informed that they got inside the house ok, etc. We were biting our nails! When they left, our house was beautiful with a gracious note, and we got a wonderful review. The 3rd Guests were the same way! We also could tell they hadn't read the House Rules or the House Manual, and no communication. Again - they were wonderful! Kept the home clean and gave us a wonderful review! If I let it, this could make me nuts, but I feel that if you use your gut instinct when they first contact you, read their reviews, ask questions, learn about why they're coming, that Guests are so busy having a good time that they don't think they need to bother you as the Host, or that you're expecting it. So far, all has been well, and now we're not quite as nervous about the non-communication - if we feel good about the people renting our home. Good luck Hosting Pavlos!