I do not think that there is an exact science or art on "how to" properly network. There have been some pretty good business books written on this topic and they really disect all the variables and what it takes to succeed in general. These books may answer some of your questions and allow you to learn more in detail about the "business" side of this industry. Although I do not know of any "aviation books" specifically written on this topic in general there are some good aviation reference books and web sites written on what it takes, what to expect, interview prep, etc, etc ,..... - Barnes and Noble as well as Border's has a pretty impressive collection of business books that do discuss this issue in depth. I am sure there are other book stores and web sites that may interest you.
I try to meet "people of interest" within the industry when I am out on trips, layovers, etc, and will usually attempt to get their business cards as well whenever the opportunity presents itself ( if I think it could possibly help me down the road at some point) since you never know when you will need to call on someone for a favor or for "help" in "attempting" to obtain a job.- Or you may even need to ask for advice. On the flip side of the coin I try to cooperate when someone asks me for help or something else along those lines, kind of a two way street.
Try and talk to different pilots, leave a good impression and you just may catch someone's eye in the process.
good luck
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