Multiple Meanings of Rhetoric.  1 Using the term 'rhetoric' . . . involves some potential ambiguity.  2 In one view, rhetoric is the art of ornament; in the other, the art of persuasion.  3 Rhetoric is the art of ruling the minds of men..  4 Rhetoric may be defined as the faculty of observing in any given case the available means of persuasion..
Exercise can cause delayed bruising even if you do not see any bruising immediately after your treatment because it raises your blood pressure. It can also make your bruising worse. We recommend putting workouts on hold until 24 to 48 hours after your fillers, just to be safe.
No relation with lunch , as such because lunch you will be having in afternoon and gym in evening. But if you are eating again before workout like carbs / pre workout stuffs etc it would be good to have 30 - 45 mins gap after eating. Reason is some people feel nauseous because the metabolic activity plus physical activity and high heart rate. To be on safer side have some thing before gym but a 30 mins gap will be good enough.