If the area of the imperfections is not large, let the paint fully cure for a few weeks, then carefully wet-sand starting with 400 grit all the way down to 2000 grit, then power buff the surface (low speed) with a knobby foam rubber 3M pad and 3M Finese-it, then 3M Perfect-it.
To help visualize getting to a FLAT surface when flat-sanding you can use a 'guide' agent such as: 3M Dry Guide Coat Cartridge & Kit - 05861
If the paint is not fully cured, you will get 'gloss die back' .... not a problem, just wait a month or two then power-buff again as above.
Warning: flat sanding and power-buffing is the technique used to 'finish' the painted, etc. surfaces of most 'mega-expensive' boats, automobiles, aircraft ..... its extremely time & labor intensive job but if you do it 'right' you may want to 'finish' the entire job this way.
....... OR simply flat sand with 320 grit and re-paint as before.