To know what people really think, pay regard to what they do, rather than what they say.
Lots of people talk a good game, but it’s harder to fake what you do than to mislead with what you say. Sure, it’s possible and some become quite accomplished at that, but the reality is that what someone does is a much better indicator of what they’re thinking than what they say. Watch for actions, watch for results and filter all spoken words based on what you see actually happening and getting done. If you do so, you’ll be able to keep a much better handle on the reality of what people are about, what they’re really thinking, and sometimes even, what their true intentions are.