Step one: laugh at girlfriend for being semi vegetarian claiming that meat is a superior food.
Step two: return with tail between legs after reading that animal protein is bad for chronic disease.
Step three: cut out meat.
Step four: cut out dairy.
Step five: struggle with diet.
Step six: overcome struggle by deciding that you are a radical ethical vegan.
Step seven: start judging people in supermarkets. Mumble things like “meat mumble mumble mumble murder”. This has the added benefit of making any line you choose shorter when you join it.
Step eight: cut out sugar, all refined foods and anything that is not organic.
Step nine: struggle to find food. Consider briefly moving to the woods and living a life with the squirrels.
Step ten: discover you can’t eat acorns and that squirrels make for poor company. Move back to society and resign yourself to paying way to much for small organic broccoli.
Step eleven: start juicing everything under the sun. Discover the joy of celery and kale juice.
Step twelve: stop using soap or shampoo. Try and convince friends that you don’t know what that smell is.
Step thirteen: take up meditation. Contemplate how you could ever use a line like “you know I can sit and contemplate the nature of my soul for hours” to pick up somebody in a bar.
Step fourteen: start a blog where you muse on life the universe and everything and force close family members to read it to improve your view count.
Step fifteen: step back, smile, and realise how amazing all these things that you thought of a inconveniences have become wonderful parts of your life.