Freedom of expression in Germany means that I...

1. may insult passers-by on the street.
2. can express my opinion on the internet. ✓
3. may publicly wear Nazi, Hamas, or Islamic State symbols.
4. may only express my opinion as long as I do not contradict the government.

Freedom of expression allows you to share your opinions openly, whether in person or online. Just remember that this right comes with the responsibility to respect others and follow laws against hate speech!