Your instincts are often a good indicator of who a person is. I have also met someone whohas made me cringe, and later discovered there was a good reason for my initial feeling of distaste and distrust. Especially if you're past a certain age, your first impression is not just a superficial judgment, but comes, hopefully, with a bit of mature wisdom and the guiding light of experience..

Still, I don't rely solely on first impressions- the best indicator of who a person is - is time. I have found that what a person DOES, not what he (or she) says or appears to be is - the true test of character- and that is only revealed in time.