Hello to all, I'm going to meet a Researcher in a Physics department next week. I've approached him about a PhD that he has advertised. I'm currently reading the research papers that were on the page describing the PhD. However, I'm looking for some advice as to what kind of questions I should ask, when I am there. Also should I dress smartly or casually? I believe it will be a fairly informal chat, however I would like to make a good impression as I am interested in the research. Thanks for your help.