Dear Lisi: My daughter, in university in another city, texts me constantly throughout the day. Though I have her schedule, I haven’t committed it to memory, so I never know whether she’s in class or not, or where she may be. But I assume that if she’s texting me, she’s awake, not otherwise engaged, probably holding her phone and hoping for a response — especially if the text contains a question. If I don’t respond immediately, she quickly texts again with something like, ‘Hello?