Since clonazepam is an intermediate-onset benzo, there is no rush to be gained by parachuting it orally.
If you want it to kick in as fast as possible, then place it under your tongue by one of the sublingual glands, you can chew it to help it break up but try not to swallow any saliva or clonazepam for at least 1-2 minutes. Then, take a bit of water in your mouth, and swish the clonazepam/water/saliva solution around in your mouth for a bit to ensure absorption through mucous membranes in the mouth, then swallow to absorb any remaining clonazepam.
Sublingual administration of clonazepam is awesome since it helps with the very slow onset while providing a pleasant, minty taste in your mouth. I would say it's the best tasting drug next to cannabis, imo.
HR Alert: Keep in mind that 2mg Clonazepam (Rivotril, Klonopin) = 40mg Diazepam (Valium), and is a pretty hefty dose. Taking 4mg-6mg of clonazepam can turn ugly really fast, unless you like blacking out and ending up in jail for doing some stupid shit. I've been on benzos for three years, daily, and 2mg clonazepam taken once in the morning still tackles the majority of my anxiety. It's a very slow onset benzo, so people keep popping them to chase a quick high, and once it kicks in, it's too late, much like Methadone.