Anyone who wants to become a player on Google+ and grow their number of followers needs to set a schedule and keep it high quality. Look I get it, not everyone can sit on it for 5 hours a day so maximize the time you do have.
People love to have their content shared so SHARE IT
This is a forum of sharing. I notice every person that shares my content and add most of them to my circles. Find something interesting to you and share the love! This always comes back to you 10 fold.
If you are not posting or sharing something twice a day you will get lost in the mix. Now don’t post 20 times a day or anything but make your presence known!
Commenting gets you out there to others reading that post and others that can help you. They also help newbies keep going. This will help Google Plus as an entire network and will keep people joining and most importantly STAYING!
Respond to comments on your own posts
I have had 3 posts reach over 1000 likes and 1000 shares each and at least 50 with over 150 likes and 100 shares and I kept it going by responding back while the post was making its run. This helped extend the post and at the same tie have GREAT chats with other members…now friends.You can never give enough Plus 1’s