It's not just a matter of symantics - for some kids, everything is literal. In parenting several kids with FAS/FAE, I've found that you have to be very careful with your instructions - because they'll be followed!
Give more, not different.
If a child has a hearing impairment, we sometimes slip in to an exaggerated communications mode. We must resist! Speak normally, as exaggerated lip movements are difficult to read. Adult's should instead provide visual cues that accompanies normal speech, without distorting the message with uncommon motions.