A small airport with no free Wifi, not one of my favourite airports to be honest.
Once you land, look for the booth below. There, you can buy the 16 euro bus ride that goes from the airport to Porte Mailot metro station. You are recommended to buy two tickets, one for your to and one for your return. The bus ride takes 1 hr 15 mins. After you reach, just head for the M sign that looks like a Mcdonalds logo. Ask around if you are lost as most of them speak English. Be very careful of pickpockets here.