Castiel slid into the booth opposite her stiffly. He never knew what to do in places such as these. Sam and Dean had dragged him into several in order to discuss battle plans or jobs they required assistance on, but generally he never knew what to do or say when the waitress came over. She used familiar terms such as 'honey' or 'sweetheart.' He didn't like those.
One had even given him her phone number. Dean had seemed as perturbed as he had been surprised. Sam hadn't commented.
Although when it came to Meg cooking, he had to refrain from asking her what it was. If it turned out to be something other than food, he doubted he would be able to sit across the table from her.
"I...wasn't aware demons pursued such activities," he said awkwardly.