In May, I'll be visiting a department at Columbia University in the US for a few days. What's the etiquette on visiting (answers relevant to US in general are welcome, to prevent this question getting too localised)?
I'd like to spend some time with quite a few of the researchers, and compare notes on ongoing work. I'll read their recent publications in advance. Should I be inviting staff out for a coffee and a chat; or dinner; or a talk in the lab?
Context: I'm a faculty researcher, and would be looking to spend a bit of time with postdoc researchers, and those professors whose jobs are primarily research, rather than admin or teaching.