In order to use the Chrome Extension in Hubspot you need to do the following:
1. Open the Chrome Extension on a LinkedIn profile
2. Select settings
3. Select Hubspot
4. Check "Show sidebar" under Hubspot
5. Navigate to a contact on Hubspot and you'll now see a "View Personality" button next to the contact's name (you may need to refresh the page if it's not showing right away)
When you click "View Personality" the Chrome Extension will pop out and give you insights on the contacts personality.