Like to vocalize and write in their second/third/etc languages in places where their first languages are used? Like I've been noticing that I use German and French quite frequently (unprovoked) around people who verstehen nur Englisch. Mein Gott, people who only speak one language are so boring, ja?
inb4englishspeakersrage
DEUTSCH IST VIEL BESSER ALS ENGLISCH SCHEISSKOPFEN!!