Culture shock is real. Here's a cheat sheet for the unwritten social rules of the Netherlands.
The Dutch are famous for being blunt. They call it being honest and efficient. Don't take it personally if someone points out a flaw directly—it's a sign of respect, not an insult.
Working overtime is not seen as a badge of honor. People log off precisely at 17:00. Part-time work (32 hours/4 days a week) is incredibly common and respected for both men and women.
Spontaneity is rare. If you want to meet a Dutch friend for coffee, expect to schedule it 2 to 3 weeks in advance. Buy a calendar, you will need it.
Bikes rule the road. Bike lanes (fietspaden) are strictly for bikes. Never walk in a red bike lane, and always indicate your turns with your hand. Buy a strong lock.
Splitting the bill exactly is the norm. Expect to receive a payment request via WhatsApp (a 'Tikkie') for €3.50 if someone bought you a coffee. Pay it promptly.
Hierarchy is very flat. The CEO rides a bike to work just like the intern. Don't act self-important; the phrase 'Act normal, that's crazy enough' (Doe maar gewoon) is the national motto.