make a great show of

make a great show of (doing something)

To do something in a very conspicuous, ostentatious manner. He made a great show of sighing despondently while Jenny was there so everyone knew how heartbroken he still was. My mother always made a great show of cleaning up our toys and clothes with a silent, bitter intensity to show just how annoyed she was at having to do it again.
See also: great, make, of, show
Farlex Dictionary of Idioms.

make a great show of something

Fig. to make something obvious; to do something in a showy fashion. Ann made a great show of wiping up the drink that John spilled. Jane displayed her irritation at our late arrival by making a great show of serving the cold dinner.
See also: great, make, of, show
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • make a great show of (doing something)
  • make an entrance
  • make great play of something
  • make great, much, etc. play of/with something
  • make (a) great play of (something)
  • make (a) big play of (something)
  • make much play of (something)
  • make much play with (something)
  • glam up
  • show off