I follow this cute "Visit Finland" type facebook page that posts articles about Finnish culture, it's nostalgic.
I found this great little article "10 Things Not to Do in Finland." On the topic of cultural separation, I figured it was good to share.
10 Things Not to Do in Finland Article Link
The 10 things include:
1. Don't interrupt a conversation.
2. Don't compare Finland to other countries (especially Sweden).
3. Tip less.
4. Don't brag.
5. Don't wear clothes in the sauna.
6. Limit public displays of affection.
7. Don't show up unannounced.
8. Remove your shoes.
9. Don't comment on the Finnish ice hockey team (unless they win, of course).
10. Don't stare at Nordic walkers.
After living in Finland for a year, I found these to be quite true. Particularly not comparing Finland to other countries, Sweden likes to act like a "big brother" to Finland, and it drives the Finns crazy. Also, you can talk about the Finnish ice hockey team particularly if they beat Sweden.