Is this my interface or yours?
John Saito

Hi John, I’m glad you have raised the profile of the humble pronoun as it is important. I’d even argue that it’s just as important to be consistent throughout your interface, just as IA needs to be consistent. The whole feel of a product can be changed by a simple misapplication. I first encountered the subject at the Oxford Smashing Conference where Alla Kholmatova gave her advice on the subject. (She did a great blog post here I totally agree though that we should treat an interaction with a system as a conversation where any information or input from the user should be labelled as my, mine, or I… and anything “said” by the system as you, your or yours. It works for me ;-)