Simba is a restless dog to draw but she did eventually settle. The trick is to draw her without letting her notice that you’re looking at her, otherwise she’ll start getting excited again and coming over to find out what is going on. 
In contrast little Benji is a Shitzu who likes to stay in the background.
While his owner browsed in the bookshop he kept her eyes on him and I had to move around to see him face-on. However as he’s such a small dog that, even kneeling on the floor, all I could see most of the time was her top-knot. Drawn in pen and watercolour crayon.