I am lucky to have been gifted with a good ear and the ability to mimic. If I can hear it. . . I can replicate it, whether it's a dialect or just matching the tone of someones voice.
Use now and then a little Exercise a quarter of an Hour before Meals, as to swing a Weight, or swing your Arms about with a small Weight in each Hand; to leap, or the like, for that stirs the Muscles of the Breast.