What are some ways to eat or cook with these? I've been eating them like chips.

these are dried shrimps. One of my favorite side dishes in korea. We usually eat them with rice.

You can stir them in the frying pan without oil, cool them down,

then make sauce with some soy sauce, glucose or sugar and sesame oil.

Boil the sauce and add the shrimps with medium heat or low heat.

You can also add korean chilly pepper paste if u want.