When you post an article from a news source do you truly rely on its information to be factual? How do you actually know if it is true if you wasn't there to witness the event?

Do you trust the news or the articles you find your information from?

Which ones do you not trust?

Which ones do you souly trust?

Well every report can have some bias of course but I generally have a
fair degree of trust only with those news sources where there is a free
and open press because these reports can be verified by other new agencies.

If the media is state controlled like in China or all the Mideast Countries
(except Israel) then there is no way to verify any of it so it can never
be trusted.

But generally in the US, Israel, Europe at least there is a free press
and they can't lie outright or they will be caught by competing news
agencies.

With practice, it becomes easy to discern what is news and what is editorial opinion. It is always best to go back to the original source (e.g. reuters) for the closest to the 'real' news. Many secondary news reports are tainted with bias depending on the views of the editorial body. Note the use of emotive adjectives, extrapolation and hyperbole as indicators of bias.
Spend a fair amount of time here examining the links people post and you will soon be able to sort the chit from the clay.