https://upgradedpoints.com/getting-b...ls-JFK-airport

This article has airport maps and pictures as well as advice.

For the person who doesn't want too much information, exit Terminal 1 and take the AirTrain to Terminal 4.

For the person who tries to gain advantage and wants lots of information, consider taking the AirTrain from Terminal 1 to Terminal 2. Terminal 2 security is often faster. There is a Delta shuttle bus between Terminal 2 and several parts of Terminal 4.