Cijepljen sam means “I am vaccinated”, spoken by a man. It is the first sentence of the course that stays the same in German but changes its ending in Croatian depending on who is speaking. In the videos that follow, the male form always comes first and the female form second.
A man gets his second jab at the doctor’s, lifts his shirt and shows his tattoo: a parrot going “cheep”. Instead of learning the sound, you remember the parrot. Next to him, ducks are standing in a line and you feed them seeds – line, ducks and seeds give you the rest of cijepljen sam.
This is Gregor’s principle for difficult opening sounds: go all the way down to the single letter and give it an image.