Not really I'm pretty quite myself and my appear to have low self esteem but had more oppertunties to "hook up" with girls then 99 percent of most loud annoying douche bags.
That sounds cool, man

Could you please suggest what is going wrong in my situation. RANDOM Girls seem to approach me OR I meet them and they are friendly, flirt with me or tease me for the first few minutes , but I am calm and don't get flirty although I keep the conversation going normal & friendly; then they mention their boyfriend or call me brother abruptly......
Why do u think this is happening ??