The best way to put saliva upon a woman is with your mouth directly. Or hers to your penis. Putting your own saliva on your own penis implies masturbation, and a partner does not like to be made to feel unnecessary.
Unlike many here I am an advocate of 'putting food on your bits' that way you know they are not poisonous, and it is nice to be ready for someone to eat me all up! Honey is a real turn-on anywhere, and the partner will have to lick me very well indeed to avoid stickiness, muwahaha.
I have had partners who believed strongly in olive oil and other vegetable oils, but eating too much oil is a laxative, so you must bear that inmind.