How to Copy LinkedIn URLs from HubSpot Contact Record to Clay Table for Data Enrichment?

hey ya'll - i'm a newb when it comes to Clay and can't seem to understand the formula process...specifically, i collect linkedin URLs when members sign up for my community and that information gets housed in HubSpot on the contact record....when I create a table in Clay, i want to copy that LinkedIn URL from the contact record to the LinkedIn URL column so i can enrich the data in Clay, and then send that back into HubSpot...can you help me understand how to do this?