It is usually not possible to overclock a laptop/notebook because you have no access to the clock multiplier, or base clock frequency in a laptop. So in that sense, there is really no way to do it.
This is actually a good thing, because it keeps you from frying the laptop by the extra heat generated in overclocking. You need serious cooling to do anything more than a token overclock. A laptop just can't cool the CPU enough as it is to keep it from wearing out prematurely, overclocking it would just kill it very quickly.
The short answer: No you can't overclock a laptop. It would fall under option #2 in my sig.