It's a heartless game, horseNpony - get out now while you still can!!!
You basically get carrots from the pop ups that appear periodically (you have to click on them and drag quickly into the basket at the top of the page) or you steal a carrot when the box comes up that some potential victim has left their carrots unguarded. It seems that the more you post and/or go into different posts the more the basket and loose carrots appear. The worst part of the game is that wretched carrot bandit - he'll come and steal from you and there's absolutely nothing you can do about it. You can save your carrots just 'cause or you can collect enough carrots to send someone carrot treats from the carrot kitchen.