First lets get your API, 

please follow the images below

Log into your EW account click on the my account link in upper right corner, then select integrations.  From integrations select Drip to be able to paste in your api token, the account number will auto populate based on the drip account

After you add in the api you can select drip from within the event integration tab,  then you can select your list and tags. You must already have the list names and tags created within your Drip account so that you can select them and if they do not show up you can click on the Reload button to refresh them.