Hello there! If you've been given a tiny wirm, then that means that you have been chosen to take care of them, and it probably also means you look cool. Here I will let you know what you need to do to take care of your new friend. 

Do I need to feed them and if so, what?

Wirms are usually pretty good at finding food by themselves, but if it comes to it, you can leave some dried fruit, fresh vegetables, or jerky out for them to find and eat at their own pace. Root vegetables, citrus fruits, grapes, and raisins are toxic to wirms. Highly processed foods are also not good for them.

Do I need to make them a nest or will they make one themselves?

They'll usually make their own nest, but they need materials to do so. Wirms that live with people tend to make their nests out of fabric scraps and similar materials they find around. Where they make their nest depends largely on their personality. They enjoy small trinkets, and they'll usually stash what they find in their nest. It is recommended that if you find something missing of yours in your nest, you talk to them about it instead of just taking it. They'll usually give it back if you ask for it back politely, although sometimes you will have to trade one object for another.

Do they clean themselves or is that something I need to do?

Wirms do a good job of cleaning themselves, but sometimes they'll need help getting everything off. If this is the case with the wirm I have given you, they can go through the washing machine and the dryer, but they need to be in a mesh washing machine bag to ensure that they don't get injured.

Do I give them internet access? 

No. This is not a good idea. Music streaming services are okay though. Wirms love music. You have found a secret :D. Hello!

Is there anything else I need to have for them?

Wirms will often pick up hobbies when they live with humans, so you'll want to have supplies for whatever hobby they decide to pick up.

The information here also applies to wirm roommates, although you will want to treat them more as an equal than a pet or a child.