I can suggest some general topics that people staying in a hostel might talk about:
Travel experiences: Hostels attract people from all over the world, so talking about past travel experiences and sharing tips on where to go and what to do is a common topic of conversation.
Cultural differences: Since people from different countries and cultures stay in hostels, discussing cultural differences and learning about each other's customs and traditions can be an interesting and educational topic.
Food: Talking about local cuisine and sharing food recommendations is always a great way to bond with fellow travelers.
Activities: Hostels often organize group activities like walking tours or pub crawls, so discussing upcoming events or suggesting new ideas can be a fun conversation starter.
Language learning: Learning a new language is often a common goal among travelers, so practicing language skills and exchanging language tips can be a great way to connect with others.
Hobbies and interests: Sharing hobbies and interests can help you find common ground with others and make new friends. For example, you might find someone who enjoys hiking or photography like you do.
Personal stories and experiences: People staying in hostels come from all walks of life, so sharing personal stories and experiences can be a great way to learn about different perspectives and bond with others.