Im loosing them all............?

I know and can feel that some girls really like me , it shows, but due to my shy and reserved nature , they never say anything! Im loosing them ! what should i do! im not changing, they wanna say many things, but dont due to my closed behaviour!!! What to say..............There are many wonderful females , who are great , but no one approaches, its cos of my self-indulgent nature............huh...................…