trend-spotting
n.— «I was recently chatting with my hairdresser who was telling me she had gone on a “trend-spotting” visit to New York. She asked me, in German, how would she say the word “trend-spotting” in English? Unless I heard wrong and the word “trendspotten” exists as a separable verb, I’m pretty sure it is an English word.» —“A Denglish primer” by Elizabeth Book Frankfurter Allgemeine Zeitung (Germany) May 21, 2004. (source: Double-Tongued Dictionary)