"Oh, we just track hours, so we can assign our hours to specific projects," your friend might say, "and we track attendance, and the on-time release of software, and we track bugs and bug fixes and customer complaints and the number of times we had to re-write documentation, and a few other things".
Make specific plans with your friend on a sporadic basis.
If you are bothered by one specific thing that your friend does (e.g. teasing you about your hair), tell them before discounting them as a friend.
So, as you fall in love, maybe even get married, it no longer becomes feasible to talk with friends about women's bodies in such specific detail because, say, your friend works for your wife, and you don't want him thinking about her cleavage when she's firing him.
Use open-ended questions to encourage discussion and avoid asking specific ones or grilling your friend.
Try not to use something like 'pen' that might be easily confused - one suggestion might be to use 'banana' or a specific kind of food your friend knows you don't like.
Specific friends or friend groups can also be selected.
As you push the 3D map around with your fingers, labels for specific searches or your friends' recent Foursquare checkins pop open as they come into view.
Pip, a structured messaging app, is the first launch in the Alpha series, and like Yo, it allows you to send a specific message to your friends on the app.
Plus, there are times when you might want to suggest a specific dish to your friends at a restaurant, or something else that you don't necessarily care if they see, unless they are at the location in question.
