Hover a word for its meaning; click it to hear it (when a recording exists) and to mark it unfamiliar. Click the English line or Explain for the sentence's grammar.
Type the Dutch for each English sentence from memory. Don't look anything up — the sentences you can't produce are exactly the ones worth a card. Press Check to see the correct Dutch, or I don't know if it won't come.
Every sentence you recited is listed. Sentences you got wrong, only partly right, or didn't know are ticked for you. Change anything, then save. After saving, tell Meester “create my cards”.