There are signs which indicates her inclination towards you
but it depends from girl to girl and person to person, I would say, personality, not your status or looks matters the most. It's the personality that makes you unique and will make her fall for you and sometimes you yourself have to initiate rather than wait.
and also there is a saying that
"First Impressions last" so the better we make the best impression from the first meetings .
but of course there is also development as time goes by so what you need to do? "Be Yourself" because at least even what you are if she really loves you then She will stay.