Do Germans use words like "um" and "like" to fill their speech? "Like" is obviously used by teens in Canada, etc., but I'm sure adults say "um" when they are unsure of something while speaking.
I'm particularly interested in how Germans in Berlin and Viennese Germans say "um" and "like". Also, what are the equivalents in Hochdeutsch? And, in general, which age group uses these words?