The best wizard of all times is Gandalf.
The second place goes to Dumbledore, and the third place is for Harry Potter.
The varied you food the better. Fat and fried food, artificial food, convenience foods, food with concentrates, aromatizers, dyes and substitutes are not healthy.
Strong drinks are not healthy during pregnancy. But if you terrifically want some you can drink a little bear or wine (better).
As other people in Europe, USA, Canada, etc. Young people wear jeans and other casual cloth.
You can look on Flickr for some pictures of poland people. Good luck