what are the envelopes for?

JillTurnerOdice

They have people's names on them with numbers underneath. I have clicked on them and they get a checkmark under them, but I don't see anything happening afterwards?

KingsPinn

Is this something in a level or are you taking about your friends on the map screen? If there is a tickbox that normally means that you have sent them a life. Can you post up a screenshot if this isn't what you mean?