Answer:
Proper handwashing, especially before and after handling food and using the toilet, helps keep germs at bay. Other important ways to slow or stop disease transmission are by ensuring the food we eat and water we drink is safe, avoiding people who are sick and practicing safe sex.
Invest in a healthy cookbook, you can try new dishes and find some that you like. Research plants that grow well in your climate and plant some fruits/veggies. Buy fresh ingredients. Make a list of healthy foods that you enjoy. Try cooking things different ways because anything can taste good if cooked nicely. (put oil in a pan and cook brussel sprouts until they are a little soft, season with salt and pepper.) Shop at Trader Joe's and Lucky's Market if possible. They have cheap and healthy products. I strongly recommend Lucky Market.
I would say negotiation.
Engaging and accepting just makes it seem like you're willing to do it just for your friends.
Avoiding (could be a choice but it) makes it seem like you don't want to hang out with them.
yes they can because it messes with their brain and the way of thinking.