I have hired (interviewing team member, or hiring manager) hundreds of engineers.
If you are hearing "let me know if I can help" (number 5) you might be doing something wrong. You should be hearing some version of " I will talk to my boss" or "I will call for you" or "XXX person I know is looking".
I have a list of about 30 people who if they call me I'm going to go out of my way to get them a job. That means make a spot for them on my team. Or I will reach into the non overlapping parts of our networks to see if someone is hiring.
Im going to do this because they are good, because they don't suck, because they will get the job done. They will make me look good as the person who brought them in/onboard.
Those of us who survived the bubble did so on hard work and a network. We brought along the people we thought were the best, who we got along with, who would get the job done.
Its the new year, it is the perfect excuse to figure out who your network is, and what they can do for you. Make a list of folks you know, call them up, tell them your thinking of changing jobs. If you don't hear a lot of "send me your resume"/"is your linked/site in up to date" then you need to make some changes.