2.
Barcelona, Spain: Referring to Barcelona as "Barca."
3.
Portland, Oregon: Using an umbrella when it's raining outside.
6.
Chicago, Illinois: Visiting Navy Pier during the summer.
7.
Singapore: Sticking or throwing out chewing gum in a public space.
9.
Edinburgh, Scotland: Pronouncing the "G" at the end of Edinburgh.
13.
Alberta, Canada: Feeding the wildlife.
16.
Melbourne, Australia: Calling these "flip-flops."
17.
Seattle, Washington: Looking tan.
19.
Amsterdam, Netherlands: Wearing a helmet while biking.