Tips on levelling up more

A few days ago, i wrote an observation in the game which spoke of another .2 level point. I apologize for the error.

After looking at the game some more, I realized that it was me upgrading my dishes that gave me additional level points.

For every upgrade on a dish, the owner gets an extra .2 level point. Thus, for example, if you have upgraded the dish to the 3rd level, you shall get 1.4 per serving.