So.. I was talking about people. About how to know what is going on inside their heart. Are they trustworthy or not. Of course, one should not "always" be judging people, that way we will not have time to love and appreciate them. But sometimes the situations are such that you have to judge them. As per me, the following methods can be a good indication of the true nature of people.
The popular one (Ref: -
Hindi Movie Munna Bhai MBBS), observe how the person is dealing with persons who can not benefit him in any way. If the dealing is polite and respectful, the person is likely to be good at heart also. And if he dealing is impolite especially with people below his status, he is very likely to be an untrustworthy person.
The second one, is the behaviour of the person, while s/he is angry. While observing it must be taken care that the anger must be real too. Real anger always brings out the true nature of a person.
Anything else?