It's not love at first sight always, maybe it is the way how two human beings are attracted to each other, maybe it is the way how they expressed their feelings to each other, it is the way how you expect again and again that person to see you with the same look. Is it a magic of love or attraction?
And by chance if such thing ever happens with you, never let that person go , not at least so easily. Not every person will treat you the way that special one would treat you. Not every eyes will comfort you like the special one did.
If your encountered eye-clashes are special, treasure them in your heart because such memories are something that makes your soul happy forever.
Love never happens on first sight, what happens is creation of place for someone which your eyes are watching. Give some time and put efforts to earn it not win it. Isn't it beautiful when opportunity knocks your door and this time its your partner. So open the door and grab that chance to have them. Again it's not making them as part of your life but you becoming part of their life which is way difficult, it takes a lot of time. And yes, it doesn't happen whenever you want but whenever they want.
Accepting the things going out of your way , doing things beyond their imagination and getting satisfied just by their smile defines love. But about the first sight love its slightly different, first time you see, you are just stuck in the moment, unknowingly you decide “that's him/her”, and lifelong you will cherish that moment of how happy your heart was and how beautiful your experience was.
Don't search for anyone on your own desperately, don't wait for this moment to happen every time. Instead just be yourself, after all who has to fall in love with you, will fall for who you are. Eventually things will set right and life goes on. Also it's not necessary that it has to be first love, it can be your 3rd love or maybe more than that. Just wait for that moment when time is still around you, no sound, his/her every face gesture looks lovely, but still you choose those beautiful eyes, feels like your favorite music playing behind and wind is blowing around you two. It's not too filmy it's just how you feel and how you want it to be.
Fall in love guys and have a great life!!!