In the House of Little Devil Alice - ABNORMAL Expansion Pack Ver.2.1 by BouSoft - Adult Sex Game

You earn points based on how well you interact with Alice. The hearts that are seen when touching/teasing parts of her body comes with different colors and each color represents how much she's enjoying it. When it's blue (You still earn a little bit of points but you will not be able to progress), it means you must choose another way to interact with her to eventually bring her to orgasm and earn more points.

When you choose to exit out of the session in the menu to the right, your score will accumulate based on how well you interacted with Alice and will provide you with points used to purchase new items and options from the shop.

To change the item (or the way to use an item while holding the left mouse button) you want to use to tease her with, use the scroll wheel on the mouse, many setting are also mapped to the keyboard.