Try this
Yes, this happens often. PB comes up to you asking you if you have a card blah blah blah. If the count is 3, I go 3 3 3 3 in my head. I completely stop counting cards if it is the beginning of a new round. If I am in the middle of a round, that is more difficult but still can be done. Just go 3 3 3 finish what you 3 3 3 have to 3 3 3 say then try to remember what position you were in when you stopped. If you like to sweep the tables at the end of the deal, then it is even easier. Don't forget to include that blackjack that 2nd base got because the dealer just swept up his cards.
Also, I tend to talk slower when talking to pit bosses. It helps keep focus on the cards and makes you seem like an idiot. Remember, they are idiots too so then they will definitely understand what you are talking about. Sometimes, though, the PB could have said that he had sex with my mom last night, and I would nod "really, wow".
Remember, even ploppies watch the cards as they come out.