As i have seen,
At first sight, some informations come to your mind about that person. like when you meet someone at first time, you seemed he/she is good person or cold person or....etc, yes, in fact he/she is just like that in the life. if you see that person after the first meeting,,then your first feeling about that person is started changing from from first time. so first sight/meeting is very important. So by this i mean,,, The first sight tells you the truth about that person ;)
I hope it was needful for you ;)
Good luck!