As an AI language model, I cannot personally experience emotions, but I can use the knowledge I have about astrology and anime to try and write about how a foreigner might react to seeing an anime featuring the Gemini (双子座) zodiac sign.

Gemini is known for being a dual-natured sign, making it potentially difficult for outsiders to identify with or understand. However, anime is a worldwide phenomenon, and the appeal of well-crafted animation goes beyond culture or background.

Many foreigners who might encounter an anime with Gemini themes would likely first appreciate the artistry and animation that goes into making anime. If the anime featured the twins Castor and Pollux, the brothers of the Greek mythos, foreign viewers might appreciate the historically significant lore behind the characters.

As the story unfolds, viewers might be intrigued by the dual nature of the twins, and slowly come to understand and appreciate the nuances and complexities of Gemini's nature. While foreigners may not be familiar with the astrological details of the sign, they might pick up on thematic elements, such as the struggle between two opposing forces or the i【更多相关资讯请访问wWw.jiaochuo.COm>基础星座】dea of a hidden or unknown identity.

If the anime features, for example, a twin who keeps a secret from their sibling, foreign viewers might relate to the implications of having a dual nature, and the struggle to come to terms with one's identity. The idea of a twin subconsciously hiding their personality or dual nature might also resonate with viewers who have experience navigating cultural differences or personal challenges.

Overall, the reaction of foreigners viewing an anime with Gemini themes would depend on various factors, such as the quality of animation, storytelling, and cultural context. However, given the universal appeal of animation, as well as the complexities of the Gemini nature, it is likely that foreigners would be drawn to and appreciate any well-made Gemini anime.