It’s a common problem on Fox News shows, where the anchor confuses one black Hollywood celebrity with another—remember the Samuel L. Jackson debacle? Exactly.

Well David Alan Grier is here to help, with this infomercial for his book “How To Tell Black People Apart” which features the hilarious acronym: PATWWFLLM, which stands for “Pay Attention To What We F**king Look Like Motherf**kers!!!”