I have not done it in my home - but in centre care lots of times.

Generally like mom-in-alberta mentioned we ask family to provide card with the English word and Hungarian word for the 'major' communication needs around transitions - aka eat, dress, sleep, bathroom, help, all done and so forth for the first few days ... and generally within a week children that age were communicating in English with others ... they really do pick up language quickly but in the in between time be prepared for anxiety and frustration as they learn how ... and depending on the personality that means either crying / withdrawal / aggression depending on if they are fight or flight geared thinker