1) Acting like 2) Being a copycat 3) Being impressive 4) Being like 5) Burlesque activity 6) Caricaturing 7) Copying 8) Doing a takeoff 9) Doing a takeoff on 10) Doing an impersonation 11) Doing an impression 12) Doing an impression of 13) Doing impressions 14) Following closely 15) Frye activity 16) Imitating Found on https://www.crosswordclues.com/clue/aping