Choose a LONGER article (= at least TWO pages without big photos!) that you find interesting and study it.
Prepare a talk (= 3-4 minutes) about “your” text, if possible speak loud. You may take / use notes, but only keywords, no complete sentences.
Think of an interesting beginning. Do NOT begin with: „My text is about …“ or „I’m going to talk about …“
Practise until you can present your text FLUENTLY without looking at your notes all the time.