There are 6 frogs to spot.
The names of all the frogs (plus a few more) are listed down the side of your screen. A frog will pop onto your screen. Look fast, before it disappears. Use your mouse to click the name of the frog you just spotted.
If you want a hint, click on the "clue" button.
If you don't pick the right frog, don't worry. The frog will pop out again.