I’ve been a regular attendee at the Indie Hackers Berlin meetup lately. I’m not particularly an entrepreneur myself, but I love hanging out with them because they generally have many of the following qualities:

• High functioning
• Smart/Clever (to be successfull, you kind of have to be)
• Ambitious
• Creative
• Unconventional thinkers
• Into self development
• Leadership

All of which make them very fun and interesting to be around!