Try to lay egg on every skyscraper, don't fly too low or to high, avoid airplanes and cannon grenades.

Go to shop and exchange eggs for different items that will help you get even more points and more eggs.

Every day there is a new Daily challenge with two prizes on completion.

On every 200 eggs you get Bonus game with golden eggs. For every golden egg collected you get 3 normal eggs.

For small kids set the "slow game speed" so they'll enjoy it too.
If you are a game master, set the speed to "crazy" high and do the things no one has done before.