Merlin grabbed the chair and pulled it over, sitting down beside Arthur despite being within smacking range. The fact that Arthur was listening, picking at the food, and seemed relatively calm relaxed Merlin immensely. He smiled just a bit, reaching over to rip off a piece of bread for himself to snack on as he waited for Arthur to finish speaking. Instead he got just a 'fine.'
Not sure if that was a good thing or not, Merlin decided just to go with it. He poured Arthur's drink then folded his arms on the table to rest his chin on. Relaxing there quietly, letting Arthur simmer and think. He would let the prince speak if he felt the need to, but otherwise Merlin was content just to sit here for the time being and tend to little things like his glass.