If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Just prepare ordered dishes and serve visitors. You need to wait until the visitor comes and orders the dish, prepare ordered dish, bring the prepared food to visitor and take the money in time. You can also buy new clothes and shoes to earn more and to serve your visitors faster. Buy TV to add patience to your visitors. Upgrade your kitchen appliances to prepare food quicker. Take care about the food to be cooked properly.