Ludo,
If you are having difficulty with activation it's probable that you haven't asked any questions before you start activation.
To activate ask questions that relate to your purpose and find answers. Find the answer? Move on ask the next question.
The dictionary game is just a game. PhotoRead the dictionary and then think of a word. Guess where the word is on the page. Notice how close you are. It's just a game
Another purpose for the dictionary. PhotoRead the English to French French to English version a few times. Daily for a month perhaps and then notice your reading and recall of English. You might find yourself looking less at the translator.
When activating start with about 3 questions you would like the author to answer for you. As you see more, more questions would show up. If your purpose is clear you'll know when you have what you need and all that you need.
Alex