My wife and I were invited to dinner with a friend who invited another couple. It did not take too long to find out that we were all Catholic. Then this couple preceeds to explain to us why the Church needs to evolve with the times and should ordain women and married men and etc. on many other heterodoxies.
At the dinner we did not say anything. We did not defend the Church, her Popes, her saints, or her Lord.
Talking about this afterward, we know that we could have called down fire (so to speak) and ruined dinner for all. So, we instead opted to say nothing. We are seeking the right approach to defend the faith and not sit on the fence.
How would you approach this situation?