Have an opinion?
Either you get into the convo, or just walk away. If they're good friends they'll involve u in their convo, if they're jackass, they'll let you enjoy the space for a really long time, so pick your choice.
Just 'ignore' them. If this continues, break off the friendship.
You cannot undo this action. The opinion owner is going to be notified and earn 7 XPER points.