I wrote about Peach, a kind of pop-up social network that caused a stir in January.
The funniest part of Peach comes in its variations on Facebook's "poke." If you want to get another user's attention, you can wave at them, "boop" them, or blow them a kiss. (Each variation is accompanied with the appropriate emoji.) But you can also hiss, "100," "cake," or "put a ring" on a friend. Or, best of all, you can "quarantine" them, an action that you use once and immediately wish existed in every other social network.