We can’t judge people just by their appearance. 

To judge someone there has to be many other qualities other than just appearance. Few of the qualities by which a person could be judge are:-

First of all we should look how he/she treat the other people specially which are in lower ranks like waiters, sweepers, and receptionist etc. 

How kind one is towards other people?

How does he manage his anger?

Is he/she honest?

Is he/she is trustworthy?

Is he/she reliable?