"Fluids, we need those too. Water would suffice, but most like some flavour to their water. Coffee has a strong and bitter taste, lots of people add milk or sugar to it, but it also has caffeïne which gives a boost of energy. I don't know how you will react to that, but if you want a cup you can have one."
He filled his own mug, adding a bit of sugar to the hot brew and stirred it with a spoon.  

Now he had a guest, one that knew very little of humans and the world they lived in, but he also had to go to work and it was a bit too late to request the day off. He contemplated what the best course of action would be. Right now he just wanted to get the Laizu through breakfast.