You shouldn't listen to other people's conversations.
Charlene is in the pantry and her coworkers Nancy and Grace are there chatting about their family affairs.
Charlene wants to react to her situation.
Charlene joins the chatting and shifts the topic by inviting both Nancy and Grace to lunch.
Charlene stays in the pantry as if she is still making her coffee in order to hear more about the family affairs of both Nancy and Grace.
Nancy and Grace thank Charlene for her invitation and agree to go to lunch with her.
Nancy and Grace feel uneasy and stop their chatting.