I will try to convert many of my family members, they are all Novus Ordo.
One of the biggest things that they do is, directly and indirectly, approve of other's sins, immorality, immodesty, flatter other people and be overall complacent and indifferent, religiously and morality-wise. I guess 99% of Novus Ordos are like this anyways. Now the focus is only on being "nice" with everyone, and never daring to "judge" or rebuke and correct anyone either.
While most of them are in principle against some of the sins, they nevertheless approve of them by their words, actions and omissions.
They all mingle, bless and are complacent with adulterers, sodomites, effeminates, "divorced Catholics", family members living in fornication and without being married, heretics, non-Catholics and things of that nature. They all go to baby showers of unwed mothers.
While i have a few things on this matter, like what St. Francis says in the Devout Life and some of the things Fr. Sretenovic has written, i wish i had more "ammo" and more specific Church teachings on this matter.