The first thing you will need to do upon arrival is to obtain a visa. You can do this in advance, but it is just as easy to obtain one at the airport when you arrive from your flight to Cairo. Make sure you have American dollars or Euros on hand to pay for the visa as ATM's can be difficult to find before passing through immigration. From there you will present your passport, visa and completed arrival card to the immigration officer. You can then pick up any checked luggage and head to customs.