Today, at the breakfast there were two people having a chat. I know one person well and just joined to say hi to that person. After doing a little chatty with her I started eating my meal.
While I was eating, those two people continued their conversation. I was listening to it and unintentionally I was showing them I am actively listening to it. My friend there could be okay with that, but not sure about the other person. They were talking about something related to work, but very far away from my domain. A department far away.
Is it professional to listen actively to a conversion where a two or more people talking? Out of those people I know only one person.