How to cultivate a logical mind when talking?

I'm not a person who is good at talking with others. I unusually will take more time period than others to get along with new colleagues. Sometimes they will think that I'm the one who is isolated from others and enjoy staying alone. As I do not deal with this kind of relationship with others at the very beginning I will try to listen to music(Halo) or play some apps like trymyapps(which can make money on iPhone) which of course will make things worse. How can I resolve this kind of dilemma?

Hang out with the group (coffee/lunches) and make a comment about the weather or how nice someone looks, just comment then keep your mouth shut and listen. Listen to what they talk about and what they say and how people respond. Read the body language of the people listening, are they liking what they hear or not? If people are talking and getting good responses then start following along on that path. The presentation, the topic, the tone watch, learn, implement, be part of the group.