It’s difficult to say, because the advice would depend on the problems that you've noticed during the observation. However, I suppose the following recommendations could be made:
Choose an article, which is of interest to the 20 year old age group.
Make sure the article is at their level (not too easy, not too complicated).
Consider the length of the article (you don't want them to get bored).
‘Chunk’ the text; deal with one paragraph at a time.
Be more spontaneous, don’t start on one side and go around the room (those who have already spoken may stop listening)
Let the students work on the article in groups. Each group works on a paragraph. The groups ask those factual questions from each other.
Think of methods, which are less monotonous and more inventive.
Don’t know… These are just from the top of my head... Anyway, I hope it helps.