There was an old phrase: Silence is golden.
Seems as though, now-a-days, it's a somewhat good idea.
In conversations and certain situations, it might be better to 'Keep silent, keep safe'.
Quoting (more or less) Jean Lake. 
Actually, taking one step forward, and five steps backward. (Keeping silent to be safe.)
But, it's probably a good idea in some instances.
Just be polite, and do a lot of listening.
'More or less', 'Right or wrong', 'In general', and 'Just thinking out loud ' (as usual).