"As you'll see from the photos below, this design work is a piece of cake, I've soon got the hang of things. Not sure what my Dad makes all the fuss about."
"OK, I need to make sure this line is good and straight and the angles are just right."
"Not quite sure about that dimension, need to double check my figures."
"Blast, I've drawn that line in the wrong place, need to correct that right away."
"Very tiring this architectural design stuff and I've only got as far as one window and a door frame. Time for a rest before I start again."