Another thing you can do is learn about criminal behavior.  They are studying you, so why don't you study them.  Understanding how criminals think and what they look for is an excellent way that you can avoid them.  I wrote an article titled "Six Common Criminal Types and How to avoid them " which, is a short but interesting look at different types of criminals and what they look for.  Of course my book covers this in more detail but article is a good start. 

Finally there is an easy little trick that very few people know about or do.  I call it "Mental Role Playing.  " What is mental role playing? It is imagining an event and playing out in your mind how you would handle it.  For example say you are concerned about what you would do if someone entered your home.  Well play that scenario out in your mind.  Think about what this person looks like, how many there are, what time of day or night it is, who is home with you, make it as detailed as possible.  Then think through, what you would do, how would you handle it.  In my book I cover mental role playing more in depth.  However this should give you a good idea of what I am talking about. 

Of course there are other things you can do.  However to cover all that would be much longer than an article it would be more like a book.  And, that is exactly what I have written.  You can check it out, along with all my articles at www.crimeawareness101.com