It's a lot easier to pick up on signals if you wear your baby as well - as much physical contact as possible because that engenders that closeness that facilitates the 'communication' in EC
DD is only 3 weeks old, so I haven't done much with her yet, but I have caught some wees so far - it's very exciting! DS was nearly 2.5 yo when I applied some of the principles to night-time continence...took less than 2 weeks and he was essentially continent (with the regressions Ingrid talks about in the book).
There's a website called Part Time Nappy Free, and that ties into what the book says and is probably better suited if you're going to be doing EC on a partial basis.