Take 2 tablespoons of honey and put it in a large cup, bottle, or squeezy thing. Add warm water (I add shower water) and slowly pour over your head, after shampooing (if you shampoo) and before you put conditioner on your hair. Massage it in and let soak for a while, then add conditioner. Rinse.
Also, when I add some honey to my condish, I just squirt a little into the palm of my hand and mix it with the conditoner. No specific ratios or anything, just however much I feel like.