overacts

/OW1 V ER0 AE0 K T S/
verb
  1. 1

    To act in an exaggerated manner.

    โ€œHe overacted his part.โ€

  2. 2

    To act upon, or influence, unduly.

Source: https://en.wiktionary.org/wiki/overact, https://en.wiktionary.org/wiki/overacts