Doing some research in advance is important when traveling to the relevant country. Here are some research (culture shock) I did and a photo of each country.
Philippines
1 English is very, very common
2 Slow-paced lifestyle is the way to go
3 Food and hospitality is their love language
Iran
1 Men and women are separate on the bus but not the metro
2 There are lots of holidays
3 Dinner is late
Ukraine
1 Sushi – so much sushi
2 Religion with style