How do you make really straight Asian hair curl without using a lot of hairspray?

I have the striaghtest Asian Hair, and in high school during prom and homecoming dances, I used to use a whole bottle of gel, and pretty much burn my hair into curling irons before they would curl, but then I discovered hot steam rollers! I get in a hot steam shower, wet my hair, and dry it off until it is damp, but not completely dry, and spray some texurizer in it. Then I put the hot rollers in, and usually it doesn't take that long to make them super curly. After about 5 or so min I take them out and shake it loose. Sometimes if you want the hair to be wavy, but not curly, I do that the night before and sleep in the curls so they are looser in the morning. Hope it works!