Klonopin is the generic name for clonanzepam and is one of the milder yet long-lasting benzo narcotics.
Klonopin has a marked sedative effect and is primarily used to treat anxiety disorders.
2mg (what you have) will likely cause drowsiness and lethargy soon after dosage.
Basically, don't operate heavy machinery, but don't expect an intense high either.
Save them for either:
A: A bad comedown
B: A bad trip