Game: which particle
What you will be able to do
Get ครับ, ค่ะ and คะ right without thinking about it.
A man has it easy: ครับ ends everything, statement or question. A woman has to switch — ค่ะ with a falling tone closes a statement, คะ with a high tone closes a question — and mixing them is the single commonest mistake a female learner makes, every day, in every shop. This game is twelve seconds of thinking that stops it becoming a habit.
This game needs JavaScript. Everything it tests is on the phrase pages, which work without it.
Common mistake
The two female particles are the same two letters. What separates them is the tone mark and the tone: ค่ะ falls, คะ rises to a high tone. If you cannot yet hear the difference, that is what the tone drills are for.