When you keep your voice down, speak up so I can hear you

I find it very difficult to avoid eavesdropping. As soon as someone leaves a group to talk in private, or I hear whispering, or someone steps out to have a private phone call, I can't help but zone everything out so I can hear what they're saying. I don't even do it intentionally, though I definitely have a bad snooping habit anyway.

You know, just fair warning.