The Minimalist: Pick either your index or ring finger as the starting point. Then add a sibling to the middle finger if you want a bit extra.
The Middle-Grounder: You know what a triangle looks like? Imagine it on your hand (the image above should be self-sufficient, really). And stack the rings onto each corner. You can do an inverted triangle too, but this one looks better. Make sure the thinner ring is on your middle finger. Proportion management is critical, please.
The More-Is-Better: Do the triangle like above. Then add an extra one to your little finger OR double it up on your ring finger. Load up your other hand as well, just make sure you keep proportions slightly different to not look like an idiot. Basically either don't do the triangle on the second hand, or do an inverted one.