This PROMPT command is for the "T" sound. This is a PROMPT we use quite often with Osiyyah. He can say the "T" sound quite well, but has a hard time (and forgets at times) to put the sound at the end of certain words or in particular words. Like "table." When you slow him down and PROMPT the whole word out with him, he can say it perfectly!
To do this command: Place your middle finger right under the front of the jaw. Right at the little indentation at the very front of the mouth/jaw. Lightly push your finger up while you say the sound. Have the child say the sound at the same time as well. Support may be necessary for the child's head to keep the child in a proper position.