I found some of these tips really useful – just need to take some more time to implement them.
To the degree that it fits your topic, try to comment or follow trending topics. You can find this by clicking the “Home” button and then going to “what’s hot”. This will show you what’s hot within your circles but also what’s trending on G+. If you can tie your message into one of these topics, it could be a good way to get noticed.
Hashtags are no longer just for Twitter. They are a great tool to pull in relevant audiences. Even better: got a trending topic, use the hashtag!
I always recommend that you tag relevant people in your post. When brands and people are tagged, they get a G+ notification and this can lead to additional engagement.
Images are Key:
Using images (preferably full-sized) can really help your posts stand out. Thumbnails and smaller images don’t have as much pull so whenever possible, use full-sized ones.
Finding relevant communities is so important and it can help you pull in a larger audience, more engagement and better traffic to your G+ page. Find some great communities and contribute your expertise!
Here are a few to get you started: http://www.thesocialmediahat.com/article/best-google-communities