With my boyfriends family? Yes! When meeting up with friends? Yes! When leaving friends? Yes!
Source: this great video about how to faire la bise, which I already translated.
I have discovered that school is a whole other ball game.
There are 7 of us in my masters program, and we see each other pretty much everyday. Even among our small, close-knit group, things can get a bit complicated.
Do we faire la bise every morning upon first seeing one another? No. But enough of the time to make it complicated? Yes.
For example, if we get to class early enough, we usually faire la bise, but if someone comes into class ten minutes late and is addressed after the class, a bise suddenly becomes optional. Sometimes for no apparent reason that I can tell the bise becomes optional.
Some of my classmates seem to be more pro-bise than others. While this doesn’t cause a problem per se as I now know who will and who wont demand a bise, I find it interesting that some of them are more adamant about it than others.
Source: the video.
Where it starts to get really complicated, however, is the casual crossing of paths. Sometimes, it is acceptable to simply wave. Other times, one is expected to stop and make time for a quick bise and a "ça va?”(how's it going?) before continuing on to one's destination.
To make matters worse, in my experience before la fac (university), a bise was always done upon first interaction, and never again afterwards. Here, even if I've already seen someone and said a casual "salut" (hello), a bise is still on the table for future greetings.
But again, the bise may or may not happen. It depends. On what? I couldn't tell you.
I'm winging it pretty much all the time.