Getting there
Best get a taxi to the hotel, most reliable are 19191, (22) 8111111, they speak English and do not overcharge. Call them to pick you up from where you are. You should pay around 35 zloty for the trip from the airport to the hotel. Just round the corner of the Hotel on Belwederska Street there is a bus stop and every bus takes you to the centre (University, The Old Town). To use communication you need to have a valid ticket - best get a 3 day ticket for 24 pln (say: tshidnovy bilet – in polish: trzydniowy) or weekly (tygodniovy bilet) for 32 pln. You should be able to get this in any kiosk, even at the airport. To facilitate communication there is a very good search engine, please find it here and print the routes:
http://jakdojade.pl/?locale=en
In BOX A put Belwederska 26 and in BOX By our destination. For example you want to visit the Museum of Warsaw Uprising, so in B copy and paste Muzeum Powstania Warszawskiego and run search for a given time. We advise you to print a couple locations beforehand.