Unless I basically ask for a response I don't expect one. As for those sent to me, I may not have the time to immediately sit down and fire off a response. Sometimes too I need to think on my answer for a while or even rehearse in my head the words I will use. I also tend to look at emails as correspondence of a more professional nature. Again, however, I do not expect immediate responses or replies at all unless I have expressly indicated one is required.

When it comes to texts, neither do I expect an immediate reply. Certainly don't expect one from me.