How do I follow other collectors?

When you find a collector you like in the Gallery or on their profile, hit Follow.

What following does

• Keeps their activity in view so you can keep up with what they add and share.
• Helps you build your own little circle within the community.

You can unfollow any time from their profile. Following is about discovery and connection — it doesn't give anyone access to your private items, which stay private regardless. See What's the difference between a public and private profile?

While you're there, you can also react and comment on their collection.