Have become a huge fan of @mattmochary 's idea of checking your energy level before and after chatting with someone, when deciding whether to work with them.
It seems a bit silly when you first hear about it, but over time it's become my #1 most important hiring heuristic.
regardless of what you think of this (hustle porn or roadmap to get ahead at work), I think more employers should adapt the practice of setting clear, non-negotiable expectations as part of the hiring process.