I had seen an acquaintance was reading a book about this and was telling me about her son and it made me curious.
This checklist had some things I see with my two older girls (3 & 5) but more than anything I saw things I recognize in myself - many more than with the girls so far.
MY 3 yr old son will put balls in his shirt and play. As soon as he realizes I am watching him he runs and hides. He is VERY persistent about me leaving