The first springtime step for a healthy lawn is to give it a good rake.
It may have been months since you raked the grass, and winter might have wreaked havoc on it! All manner of debris might have accumulated in that time.
First, rake up any fallen leaves and twigs to get it looking better.
Then dig deep to get some of the thatch up so that the new growth can get the nutrients, moisture, and light it needs to thrive.
If your lawn area isn’t too large you can use a dethatching rake to loosen and remove the thatch.