Women are turned on by what happens in their mind, it's strictly chemical. However, the majority of women are more deeply aroused chemically by what they hear and not what they see. Men on the other hand, are turned on primarily by what we see.
Not saying that it can't be done, but using body language alone will work well only on a fraction of women. Notice that SPIS had to throw in a bunch of KINO also.
Any DJ that has used whispering their spoken game into a woman's ear can attest to it being a bit more effective across the board than body language alone. But then again, why over use one skill?
Being a DJ depends on balance, being able to adjust to situations with the flow of a river running down a mountain. There may be obstacles but you flow around them, all the while your soften and smooth the path that you are using. You are only as strong as the skills in your arsenal, make sure it is as wide as it is deep.