Final answer:
Daisy demonstrates a clear preference for Gatsby's company by spending significant time with him and displaying a carefree, joyful demeanor in his presence.
Step-by-step explanation:
One indication that Daisy really likes Gatsby is revealed through her actions and interactions with him. From the provided text, it can be inferred that Daisy enjoys spending time with Gatsby and often chooses to be with him, even in scenarios that could be considered socially controversial or risky. For instance, Daisy's willingness to go out in a boat with Mr. Winterbourne, despite it being unusual for a young lady of her time to do so without proper chaperonage, suggests a strong interest in the company she keeps, hinting at her possible feelings for Gatsby. Additionally, her behavior characterized by laughter, smiles, and a carefree attitude in his presence indicates a level of comfort and pleasure in their relationship.