You can tell a lot about a person from the coffee they drink, and whether or not to speak to them before 9am.
Novelist
What I drink in At home it's simple: two scoops of good coffee (Lavazza) brewed for as long as I can wait for a dangerous, heart-starting, really quite long black. (Do I take this because of the insomnia or does it, in fact, cause the insomnia?)
What I drink out My coffee order varies - a long macchiato, a long black, an espresso or a strong latte. If you see me drinking coffee after 3pm, call the authorities!
Chief executive, sass & bide
What I drink in I use a Spanish espresso machine, but it's not as good as Marino's (the barista at The Pound, South Yarra). I wanted a good machine for years, but almost needed a second mortgage to buy it. I'm definitely addicted to my morning coffee and can't function past 9am without it.
What I drink out I move between a three-quarter latte and a strong latte, depending on how much sleep I have had.
Comedian, TV host
What I drink in I try really hard not to make coffee at home, but if I have to I use a coffee bag.
What I drink out I drink skinny lattes. I don't like it when the barista sneers at me for not ordering full-cream milk. I'm a coffee addict, and as there are so many good coffee shops, if you get a bad coffee, you never go back.
TV host and landscape designer
What I drink in Campos coffee. I am particularly fond of the Obama Blend, which is strong with a deep, robust flavour.
What I drink out After my morning surf, I will always stop for a latte at my favourite local cafe, Nourish (in Avalon). They serve Campos. When I'm in LA, it has to be the Australian Blend by Longshot Coffee (longshotcoffee .com) - my favourite, hands down.
Radio host, Nova 100
What I drink in I'm not a big coffee fan and rarely drink it at home. I'm happy with instant coffee as long as it's not International Roast - I do have standards.
What I drink out I only drink coffee on weekends as a social thing. Although I don't have coffee with sugar, I add one sugar as I know my husband Peter will end up drinking it. My executive producer, Sacha, recently convinced me to take up drinking skinny lattes, rather than the full cream.
Retired swimmer, TV weather presenter
What I drink in I have never made a coffee at home. I am one of those people who doesn't really need coffee but enjoys it. I'm not a morning coffee drinker; I'm a 3 o'clock in the afternoon coffee drinker. It's a social thing.
What I drink out I'm lactose-intolerant, so I stay away from any kind of normal milk. If I have a soy latte, I'm as happy as larry.
Host of The Great Australian Bake Off
What I drink in Nescafe Blend 43, skim milk, one sugar in a mug roughly the size of my head.
What I drink out Skim latte with one sugar.
Hawthorn footballer
What I drink in I've got a coffee machine at home, but I'm more of a takeout-coffee man.
What I drink out When I order coffee, I go where they have St Ali beans – they are my weapon of choice. I get a strong latte or double shot, single origin. No sugar – that ruins the coffee.
Melbourne International Coffee Expo runs from May23-26 at the Melbourne Showgrounds. It's open to the public on the weekend of May 25-26, and includes the World Barista Championship. internationalcoffeeexpo.com