How do I adjust my routine if I miss a day?

Hi, I'm just getting started with Foundation 1 and have a question.

I'm planning to use the routine recommended by the coach and I'll try my best to be consistent with my workout. However, I may miss a day or two if I become too busy with my job. 

In this case, how do I rearrange my routine? Should I just skip that day without selecting a smiley and go on with the rest of the routine for the week?   

HI James exactly what you said, do not update the smiley for the current training.

Ok, Thanks for the quick response