Love: How do you know?

What are some of those feelings or actions that make you realize that you love someone? in other words... how do you know? i would just like to see what people have to say

I dunno, everyone realizes it differently...there may not be a specific moment that u look up and say "Hey I love you" sometimes it is gradual. For me I realized I loved my boyfriend when I realized that we would do anything for each other...and that I loved him unconditionally, through all tha good and tha bad...I dunno, I can't really explain it too well...u just know