A "pawing jab" is not a type of jab technique. It is simply a description of any jab where the intent is to continually obscure your opponent's vision and give you an easy target for a cross. Where a cross can be a difficult punch to land, you should always be able to hit your other hand, yes? So it goes to reason that if you keep your lead hand in your opponent's face, you should also be able to hit them with your power hand.
Your stance will dictate your jabbing technique. Your intent will dictate your power. Your ability will dictate your speed, which should always be quick. Pawing does not = lazy jab. Lazy jab = knock me out please. Do not ever, ever, ever throw a slow jab. Ever.
Nuclearlandmine is very correct in his assertions, but should also be cautioned away from the slow jab, as it will always be an invitation to disaster. You may let your hand linger in your opponents face, but if you linger in getting it there, you will discover sooner or later an opponent who does not.