Less talkative being an issue. how to handle it ?

[arslan_sweeto1]

Hey guys . i am little stuck in things
I am a guy, 23 years of age, silent one. I am friendly kinda and funny person but don't get frank with girls at workplace for no reason. It seems stupid to me to start a self fabricated topic or find a lame topic to start discussion with girl. But this is where i think i am wrong. There are two instances actually to my loss.
i). There is a girl, Approx. two years senior to me. She admired my cuteness in front of my friends openly and not only one time but more than once. How i take it that she was interested in me. But i didn't want to start any such thing at workplace so i didn't forward with anything with her. This instance relates year ago. Last week she came across me after long time (as our area of work separated year ago). I said "Hi" to her (and my intentions was of respect, just like senior-junior relation) and she acted like she don't know me or something like that. WHAT I FELT THAT DAY THAT I MIGHT NOT HAVE HANDLED THE SITUATION QUITE WELL AT FIRST INSTANCE.
ii). There is a girl, Approx. a year junior to me. We got an opportunity to work together. My Habit of being silent. I hardly spoke to her whole day. One day, in front of out mutual friend, she said that i don't talk much. It was message from her to me that i should talk to her. but i wasn't interested to start any conversation with any girl for time pass purpose. i didn't talk to her much even then. This relates to six months ago. Last week, we came across each other quite a number of times but she ignored me at all and didn't even bother to say "Hi" for the purpose of junior-senior corporate ethics. What i think that these girls think that i ignore them on purpose.
How i should tackle the situation to my benefit. I mean i don't want girls to turn against me. How to develop friendly relationship with girls at workplace. so that they don't interpret my habit of less talking as against them.

[HeartIsAching]

Multiple threads. Please delete this one.