How to know if you are just friends or more than friends with someone ?

i am in love with this girl i talk to her everyday. i walk her home all the time. i think she likes me back but we are both shy people and i don't know what to do i cant sleep at night she is always on my mind and i really love her. can someone give me some advice please ?How to know if you are just friends or more than friends with someone ?
You should not miss the opportunity or else it will be too late.You should tell her soon.If you feel shy then you must try to tell her on phone or send her a written note or tell her through your mutual frnds.....


but remember..while telling u must add that if she wants to reject she can but dont break frndship.How to know if you are just friends or more than friends with someone ?
Tell her how you feel. Just sitting there won't help. Trust me, if you want something to happen between you, you have to set the chain of events in motion. Air doesn't get into your lungs without you inhaling, now does it?
ask her out before it's too late..