Please, no one take offense to any of this. It's all stereotypes and if you try very hard to not say anything crass, you'd never be able to carrying on a discussion as this one.
That said, here is what I find to be the stereotypes.
Western European: Somewhat short, clean, wealthy, devoid of any true passion, sullen, artistic, underfed, intellectual, secular, and with very dull tastes in fashion.
Eastern European: Somewhat tall, dirty, poor, full of passion for life, lively, vulgar, common, overweight by 30, stupid, religious, and with very bright and colorful tastes in fashion.
Southern European: Lets just say I'm biased.
Canadian: Unarmed Americans with health insurance. Kidding - peace-loving, friendly, all of that. It's why they make US tourists in Europe wear Canadian flags on their backpacks.
American: Horribly ignorent of just about everything in the world, horrible education system, freedom loving, generous, gullable, overweight, religious fanatics in the middle and liberals on both coasts.
Australian: Europe's rubbish that ended up doing pretty well for themselves. An accent that reminds us of Britons with autism. Not a large gene pool, everyone is blonde and buff.
North Africans: Short, Arab, travel in groups, women are always 10 times better looking than their husbands, great music and food, great ice-cream, don't dare say you're from France while visiting, extremely hospitable, don't like to be referred to as 'African'. "We're the southern Mediterranean, far more in common with the rest of Southern Europe than with Sub-Saharan Africa!")