Roundtrip on Egyptair JFK to Cairo. B777-200 interior very dirty and tired looking. The aisles and toilets were not cleaned at all during the flights. Drinks only offered during the meal service. I had to go to the galley several times on both flights and ask for water and flight attendants seemed like I was bothering them and asking them to do me a big favor. I felt that Egyptair did not take the safety briefings seriously as they were quickly shown on the overhead screens while attendants were passing through the cabin handing out newspapers. On both flights passengers got up out of their seats immediately after the plane landed but we were still taxing to our gates. The overall lack of service from the flight attendants was not enjoyable. Egyptair need to dramatically improve by updating their aircraft with better inflight entertainment and improve their cabin services (both meal and beverage) in order to be close to the service provided by other Star Alliance and international airlines.