Step 1. Find a coffee shop with a window seat and a view.
(Optional step: Turn up to the location and realise you've brought all your inks but no pen. No really. I've always known I was a rubbish urban sketcher. Go buy pens.)
Step 5. Have another coffee. And a Danish pastry. Try to hide the mess you've made of the table when they bring it over.
Andrea Joseph is an illustrator who lives in Manchester. See more of her work on her online sketchbook. Or on Instagram and Twitter @aheavysoul