1) leave nothing in a bowl that is sitting out to be "bite size";
2) leave only edibles that require peeling, washing, cooking or the like (i.e. edibles but not without SOME prep);
3) leave out only things you do not actually like or prefer;
4) I love some homemade jams/relishes - try putting a few ounces in your prettiest tiny serving dish but with NO SERVING UTENSIL (if someone puts some out - like toothpicks or those flat ice cream tasting "spoons" - grab them up right away & slip 'em into your pockets!).
EXAMPLES: I really do not care for licorice flavor. I don't like shelling walnuts. Although I do like plain chocolate, if I have to buy some to have laid out in LR or kitchen counter I buy only a 6-8 ounce brick - SOLID, non-serrated or scored. HARD. Only edible really after a stiff knife cuts/breaks it leaving teensy shards of now kinda sticky choc all over. Love oranges/citrus? Leave out only those hardest to peel, or just have out ONLY lemons & limes!