Alright kiddo, imagine you have a lemonade stand. You want people to buy your lemonade, but you have to make sure they actually want it and have the money to buy it.
Now imagine you wanted to sell more lemonade. One way you could try to do that is by lowering the price of your lemonade. If it costs less, more people might want to buy it. This is called demand-side economics.
Demand-side economics is the idea that when you want to increase economic growth, you need to focus on making sure people have the money and desire to buy things like goods and services. If people have more money, they can buy more things, and that helps businesses make more money and create more jobs.
One way to put demand-side economics into action is by using government policies like lowering taxes or increasing spending on social programs. These policies put more money in people's pockets, which they can then spend on things they need or want.
Of course, there are people who think that this approach doesn't work, and that too much focus on demand-side policies can lead to inflation. But generally, the idea is that if you want to boost the economy, you have to make sure people can and want to buy things.