Quick question. I know that iMessage allows a user to see when someone is typing to them (...) while they're in the chat window, but is there any way a user could be alerted of someone messaging them when they're NOT viewing the conversation? I ask because a couple of times an acquaintance has asked me "yes?" when I'm just beginning a conversation with them. Wasn't sure if they had a random app/were aware a feature I wasnt, or if it's just been coincidence and they happened to have opened our chat at that moment in time as well. Thanks!