I don't know when I am required to witness or when I am not. I doubt I am required to all the time just cause I know a clerk at a store is muslim or Orthodox. But idk. I sometimes feel worried with the Orthodox because of how they have a valid Eucharist and since they are heretics, they are in mortal sin so if the Orthodox person goes to Church on Sundays he/she would be profaning the Body of Christ unless their "priest" was a former anglican just received by vesting. Also I sometimes feel bad at family events because my aunts (one specifically) are on the road to hell and I don't know what to do.

That means 12 were at Last Supper with zero women.  Then we don’t receive communion?  Only the ordained should receive communion?

St. Thomas gives guidelines about when correction is required or even permitted, and evangelizing is in that category.

You have an obligation if you're someone's superior and therefore responsible fro them to a point.

You also have an obligation, to a point, with those you have duties toward, such as a spouse or your parents, because honoring them involves doing all you can toward their salvation.

But the biggest is the prudential consideration.  Will whatever say do ANY good whatsoever?  In some cases, it might make it worse and make them push even farther away.  So it's a judgment call.

Basically, pray for the person, and ask the Holy Spirit for hints about where He might be inviting you to intervene somehow.

Yes, Ladislaus saved me some typing as usual.

Don't cast your pearls before swine. This is a common mistake of the Protestants.

HOWEVER, if you're interested in fulfilling your duty before God, then LEARN YOUR FAITH WELL. We live in a post-Christian society. We are surrounded by infidels and heretics. Become an apologetics expert. When non-Catholics ask questions about the Faith, the Mass, the saints, statues, sacraments, sacramentals, Church history, praying to saints, the Blessed Virgin Mary, the Incarnation, the exact nature of Jesus, etc. you should have answers to ALL THEIR QUESTIONS.

I'll tell you this: when someone asks you an honest question, or when someone is seeking the truth and investigating the Faith, and you (a known Traditional Catholic) is forced to shrug and mumble incoherently "ahuhnoh" ("I don't know"), you will probably have to answer for that later at your Judgment. Can you honestly say that God didn't give you the brain to remember/understand, and didn't give you enough time to read a couple books? I would never be so bold to accuse God of either of these things -- but there are some who are retarded, etc. and they are indeed off the hook. If you're really going to claim "too busy" you better be right -- you better not be wasting time, because you can't fool God, even if you can fool yourself.

You never know when you will come across an honest seeker of truth, a person of good will. That person's salvation might depend on YOU picking up that Catholic book in your hour of downtime, instead of turning on the TV, firing up the gaming console, or kicking back to waste another hour on Youtube.

I wish I had a nickel for every time I found reason to bring up something I just read in a Catholic book (whether the book is about a saint, apologetics, history, doctrine, spirituality, etc.) in the next week after reading it. It's an amazing coincidence that seems to happen to me a LOT. If I really got a nickel for every time my studying the Faith has come in useful, I'd have a lot more square feet around here: I'd be able to put up another house on my land.

Mark 16:15

And He said to them, “Go into all the world and preach the gospel to all creation!

Yes, he indeed said this to the Apostles, who were both priests and bishops.

Unlike Protestants, we Catholics don't blur the line between the Ordained and the Layman. Nevertheless, laymen have their role to play in street apologetics, witnessing to the Faith and answering questions of our friends and co-workers, going places priests can't easily go.

Read my above post.

That means 12 were at Last Supper with zero women.  Then we don’t receive communion?  Only the ordained should receive communion?

There is no mention in the Gospels of any woman being present at the Last Supper. I don’t understand why that would mean that women don’t receive Holy Communion. Only the ordained can consecrate.

The point I was making does not concern the distinction and roles of the two sexes, but the distinction between the ordained and the laity.

So St Paul was the priest/bishop apostle to the gentiles and St Timothy his devoted servant and Bishop of Ephesus. They were full time missionaries while Cryptinox is a student layman. Two very different roles.

As Matthew said, his role is to know his faith so he can use his knowledge to help sincere seekers when they want to know the cause of his hope - 
being ready always to satisfy every one that asketh you a reason of that hope which is in you. 1 Peter 3:15

No one else "understands" it either.  It is another of those VCR comments/questions/insights that just make you scratch your head.

What is a "VCR comment"?

It is too bad that we can't devote more of our efforts to being lay apologists, and beat the Protestants at their own game.  Being conversant in the Bible is a start.

The priestly sex abuse crisis has pretty much destroyed the ability of the "newchurch" to persuade anybody --- and has destroyed our ability as well, unbelievers don't make that distinction.  Regardless of how succinct and cogent our arguments are, the unbeliever just has to come back and say "yeah, but your priesthood is a nest of queers and pedophiles".  I'm not saying that's right, I'm just saying that is their perception.

What obligation is there to evangelize?  V2 says we shouldn’t. Also, we don’t need to because baptism of desire will save anyone who wants to be saved...or anyone who doesn’t know about the Church.  Evangelization is an out-dated idea.
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...Unless you’re a true, orthodox, Traditional Catholic.  If so, then the above paragraph is 100% heresy.

I feel like if you're saying BOD means we shouldn't evangelize, you haven't really read Lefebvre.