My first post in this topic is already a long time ago. I'll rewrite my piece with some extra information.
In the Netherlands we usually make appointments for all kinds of things. People who come to visit you, the hairdresser who comes to give you a new haircut. Going out or going to the cinema. You make an appointment for this and write it down in your agenda. Visiting someone, even a friend, without having made an appointment before is considered as very rude; you may not expect someone makes time for you at once. Only very good friends who know from eachother that visiting eachother without an appointment isn't a problem can do this.
Being on time at your appointment is really important! The first impression can be negative when you show up late! It's absolutely unacceptable to be 5 minutes too late. One says here often, 'better 1 hour too early than 1 minute too late.' Appearing too late for a job interview is useless, being too late means automatically that you're not hired by the company.
Usually when you make an appointment, you only agree on the time that your appointment starts. It's considered rude to stay too long, the host won't ask you to leave but will feel very uncomfortable! Visiting someone for 1,5 or 2 hours is considered as normal here, unless when you're good friends, then you can stay longer. And guests should leave before dinnertime, in the Netherlands guests usually do not join the dinner table; so you have to leave before that time.
The Dutch are really cold when they meet eachother. Or perhaps the people in the south of the Netherlands. We only say 'hello' to eachother, we do not shake hands, neihter do we kiss, we don't touch eachother at all. You'll shake hands when you meet eachother for the first time; you won't do it anymore the 2nd time you meet. Dutch people only shake hands to congratulate or to condole eachother. You can kiss eachother when you congratulate someone, only good friends do this; men do not kiss eachother.
In general Dutch people don't like to be touched by other people. You do not lay your hand on someone's shoulder, neither on his/her back, only friends can do this; touching eachothers faces is unthinkable. Kissing eachother is perhaps no problem for you or for your partner, but kissing in public might be considered as shocking. A short, quick kiss isn't really a problem but french kissing isn't something you do in public.
One eats with cutlery here in the Netherlands, separately from poultry one always uses cutlery and thus doesn't eat with his/her hands. Even chips are eaten with cutlery, many people eat it just with their hands, though.
Dutch people usually don't like to talk about money or the amount of money they earn. So don't ask someone how much he ears a month. That's private and not your concern.
One should address in formal; strangers, older people and people who are professionally of a higher rank. Dutch also address their grandparents in formal, in some parts of the country even children adress their parents in formal.