When adding the command to a signal in marker training, do you do the signal and then say the word?

Hello Cindy,

I have watched the marker training video several times and there's something I'm not grasping. When you are marking something and the dog is getting it 8 out of the 10 times, as you start to add the command, do you hand signal first then try to say it. I see you hand signal on the video when teaching the look. For example training the look, once the dog understands, how would you go about getting the dog to do that with hand signals or saying the look command? I don't understand how you get him to catch on to what your saying or signaling. I understand how to get to the stage where you add the command but I'm lost after that. Thanks.

Respectfully,
Marcus