But yes, mage RP. I guess most of all guild related RP happens behind closed doors, more or less. I have found some similarities with monk RP which has been delightful, even if other mage characters do not share Delia's background.
Most mage RP tends to locate wherever the mages might happen to meet, or in their grand HQ. Being somewhat solitary creatures they have trouble acting as a group and easily lose contact with each other.
Should they meet inside a city or somesuch similar area their options are reallly limited. They simply cannot sit down and talk shop and casually go about it. Or they can, but I think I already voiced what I think of it. Of course, if society is so gracious that anything goes mages surely will not object
I simply approach this by imagining a suspicious stranger arriving into town. Upon entry that stranger might be disarmed and his weapons kept until he has concluded his or her business and upon leaving the weapons are given back. A reasonable safety measure if the region is dangerous and rowdy guests are not that uncommon. Or if you visit a person of importance. There are numerous situations where such safety measures are warranted but one can never really disarm a mage(well, you can knock him uncon or kill him). He can simply state "insert sword through guts" and make it so(to put it roughly), or worse. Priests of course belong to this category but they have worldly power and authority to back them up. They can do, in some instances, pretty much what they please when compared to mages.