You can’t outright, but you can at least try to minimize your exposure. Easiest way is to avoid buying products that use plastic packaging, especially if the product that you’re planning to buy is food. Don’t microwave plastics, even the supposedly “food safe” one - that releases a ton of microplastics into your food. Don’t order takeout - again, lots of plastic in the containers. Even paper food containers contain a plastic coating.
Don’t touch receipts, especially with wet hands. Or at minimum, wash your hands thoroughly after touching it