“Nerdy” behavior can vary widely from person to person, but it often involves a deep enthusiasm or passion for intellectual or niche interests. Here are some examples of nerdy behaviors:

1. Collecting Comic Books: Many people who love comic books are considered nerdy. They might collect rare issues, debate superhero lore, or attend comic book conventions.
2. Playing Tabletop Games: Games like Dungeons & Dragons, Magic: The Gathering, or Settlers of Catan often attract nerdy players who relish complex rules and storytelling.
3. Programming: Computer programming and coding can be considered a nerdy pursuit, with enthusiasts discussing different programming languages, solving complex problems, and participating in hackathons.
4. Science Enthusiasm: Nerdy individuals might have a strong interest in scientific topics, such as astrophysics, biology, or chemistry, and enjoy reading scientific literature or attending science lectures.
5. Cosplay: Dressing up as fictional characters from movies, TV shows, or video games is a popular nerdy hobby, and cosplayers often create intricate costumes and attend conventions.
6. Anime and Manga: Fans of anime and manga are often considered nerdy, as they may spend hours watching series, reading comics, and discussing storylines and character development.
7. Gaming: Playing video games, especially those with complex narratives or deep strategy elements, is a common nerdy pastime. Gamers might also engage in speedrunning or analyze game mechanics in detail.
8. Bookworm: Having an insatiable appetite for reading, especially in genres like science fiction, fantasy, or classic literature, is a classic nerdy trait.
9. Fandom Dedication: Being deeply involved in a fandom, whether for a book series like Harry Potter, a TV show like Star Trek, or a movie franchise like Star Wars, often involves nerdy behaviors like fan theories, fan fiction, and attending conventions.
10. Math and Puzzles: Some nerdy individuals enjoy solving complex math problems, logic puzzles, and brain teasers purely for the intellectual challenge.
11. LARPing: Live-action role-playing involves participants immersing themselves in fictional worlds, often with intricate rules and costuming.
12. Board Game Nights: Hosting regular board game nights where friends gather to play strategy board games is a nerdy social activity.
13. Science Fiction and Fantasy Conventions: Attending events like Comic-Con or Dragon Con to meet actors, writers, and fellow fans is a hallmark of nerdy behavior.
14. DIY Projects: Building or crafting intricate projects, such as customizing computer setups, building model trains, or constructing detailed scale models, can be a nerdy pursuit.
15. Fantasy Sports: Immersing oneself in fantasy football, baseball, or other sports leagues and carefully analyzing player statistics is a nerdy approach to sports fandom.
16. Comic Book or Movie Trivia: Impressing others with encyclopedic knowledge of obscure comic book characters or movie quotes can be a nerdy conversational skill.
17. Science Outreach: Engaging in educational outreach to share scientific knowledge or participate in citizen science projects.
18. Conlanging: Creating constructed languages, like Klingon from Star Trek or Dothraki from Game of Thrones, is a nerdy linguistic hobby.
19. Data Analysis: Enjoying data analysis, statistics, and data visualization as a hobby or profession.
20. Fandom Merchandise: Collecting and displaying merchandise related to a particular interest, whether it’s action figures, memorabilia, or movie posters.

Remember, being “nerdy” is not a negative trait; it’s a reflection of someone’s passion and enthusiasm for their interests, often in areas that require depth of knowledge or specialized skills.