The easiest way to check if your Pets are active is by tapping the Paw Print button in the Main Lobby. If you see a countdown timer instead of the "Feed All Pets" button, this means that your Pets are active until the timer runs out.

Some Pets also show up in gameplay around the features they directly impact. For example, Simon will appear on the "Earn Free Coins" screen when watching a rewarded video ad.