Love at first sight, in my opinion, isn't exactly love at first sight. I think it's more, love at first encounter. I saw my husband, a very handsome man, and was immediately attracted to him. It wasn't until we actually spoke to each other, later that evening, that I knew he was the one for me! It's initial attraction, then confirmation!
"Love at first sight" really means you have an infatuation towards someone. To love someone, is to know someone. This can only happen over time while getting to know the person you are smitten with. :)
My dad was working at a supermarket and one day my mom walked in my dad saw my mom and told his friend he would marry her one day and it took awile but she finaly said yes... So I think it is seeing someone you have never met befor and knowing without a doubt you and that person will be together forever <3