Je bent een beetje moe.
Or, more politely, but very impersonal
U bent een beetje moe.
beetje beter is the translation in Dutch. It means little bit better.
It is derived from the word 'Cansada' which means 'tired' in Spanish. It basically means 'a bit tired' or 'a little tired.'
Sometimes... a bit. Usually nothing serious.
Leugenaar (or a little bit more childish: liegpeuk)
A name applied to English colonists by Dutch settlers. It maybe from the Dutch word Janke meaning Little John, a bit of an insulting nick name for the English by the Dutch
Because I'm a bit tired at the moment.
Dutch people are reserved and well mannered, they may seem a bit aloof and cold. They are straight forward, honest and a bit boring. People there are very tall, usually have blond hair/blue eyes.
Tired, or 'All wore out', usually used after finishing a project, or a bit of work.
The short answer is: lack of oxygen or shortage of glycogen. This site gives a bit more in depth explanation: http://news.softpedia.com/news/Why-Do-Muscles-Get-Tired-60179.shtml
As a Dutch girl i say Dutch people are nice. The younger ones are mostly open and helpfull, older ones a bit suspicious or cranky sometimes. But really that depends on where you live i guess, in general are most of them helpfull!
They weren't especially tired! The march was a bit of a picnic - almost no casualties, plenty to eat, even the opportunity for a bit of mischief.
They are good, just a bit tired from standing in the same place the entire time