To determine whether a person is a lily requires more information and observation. Here are some characteristics that may help to judge whether a person's appearance is feminine:

1. facial lines: women's facial lines are usually soft, such as the shapes of eyebrows and eyes, and the curves of lips.

2. Hairstyles and hair colors: Feminine hairstyles and hair colors are usually natural waves or straight hair, and the colors are mainly brown and black.

3. Clothing style: Feminine clothing styles usually pay more attention to showing body curves and femininity, such as slim dresses, long skirts and high heels.

4. Sexy performance: If a person shows attraction to the same sex in behavior, or appears unnatural or unconfident when interacting with the opposite sex, then she is more likely to be a lily.

It should be noted that these characteristics do not necessarily mean that a person must be a lily, but may also be related to personal personality, experience and other factors. In addition, to accurately judge a person's sexual orientation, we need more factual basis and in-depth understanding.