I worked for a consulting environmental engineering firm that had as one of its clients the company that I work for today. The VP drove up to see our new offices and ask about how they could go about setting up a CAD system. In the middle of the conversation, which took place in a conference room called the "fishbowl" (four-sided glass walled), he offered me a job and as he did the President of our company was walking by the door which happened to be open!
Flattery is nice but unless you truly want to make a change take the offers with a grain of salt and a "Thank you for asking but I'm happy where I am at the moment" response.
BTW....I took the guy up on his offer and within three months I left the company I had been with for almost 12 years. Never regretted having done so.