The official language in Warsaw is Polish, although English is widely spoken. Tourist establishments and attractions will almost always cater to English-speaking visitors, though learning a few basic Polish phrases is always appreciated:
Good morning/day – Dzień dobry
Thank you – Dziękuję
Goodbye (formal) – Do widzenia
Please/Here you go/You’re welcome – Proszę
Hi/Hello/Bye (informal) – Cześć
Goodbye (formal) – Do widzenia
Yes – Tak
No – Nie