You'll want to follow other profiles on MV in order to see regular updates from your favorite MV Creators. As a Creator, you can also view social activity from Members on MV.

To follow an account, simply click "Follow" on the user's profile:

You can also follow creators from the icon over the vid player on any vid page:

If you want a list of everyone who you follow, you can find more information here: How do I view my Followers on MV?