There will be a variety of flash cards with different topics as time goes by.
The cards include such topics as:
Feelings, weather, nationalities, countries, foods, health problems, etc.
While knowing the desired topic's vocabulary is great; I also teach how to put each into it's own sentence.
If time allows, I am then able to teach a question containing the vocabulary and the students can have fun asking each other the topics that I present to them.