Perspective

I sit here excitedly awaiting the Olympic's opening ceremony and comtemplating the past couple of days. I think I will make this short and just leave some thought and questions.
Situation: I'm at work with coworkers that I have grown very fond of, despite our disagreements of values and morals. As I leave, one who is working later than I, sweetly asks me to do a quick favor for her and run across the street to buy a pack of cigarettes. What do I do?

And, a simple question. Is it possible for guys and girls to just be friends? Ok, maybe a little more to this one - Christian to Christian, non-Christian to non-Christian, & most curious to me: Christian to non-Christian. Is friendship possible?

Feedback is desired.
Maybe some more background to this later, but for now, I'm watching the Olympics. Ciao!