Reshare a Post
Open a post and tap the Share arrow icon 
, then add comments and choose which circles or people to share with. Tap icon 
to share the post.
Post Comments
Join the conversation by commenting on a post. Just tap the Add a comment box at the bottom of the post you’d like to comment on.
+1, Edit or Delete Comments
Open a post and tap on the comment you’d like to +1, edit or delete, then select +1 comment, Edit comment or Delete comment.
Circles 
Circles are an essential part of Google+. The great thing about circles is that they let you group people together based on how you think of them in real life.
Go to the Circles by tapping the Google+ icon | in the top |
tapping Find People. |
|
Create a New Circle
Tap the Create a new circle at he bottom of the stream and name your circle, then mark the circle as Just following if you want to exclude this circle when you share with Your circles. Tap OK.
Manage Circles
From the Home stream, tap the more icon 
to navigate to a specific circle. From a circle, you can change the circle settings, and add or remove people.
Find people to add to your Google+ circles by visiting the Find people destination in the Google+ menu. To add a suggestion to your circles, tap the Add icon. This will automatically add this person to a default circle. Tap the circle name again to move the person to a different circle.
To remove people , go to [their profile] > [circle’s name], then uncheck any checkboxes.
Profile 
Change Your Profile Photo
1.From the Google+ menu, tap the Profile icon.
2.Tap your profile photo to edit.
Tap Take Photo to use a new photo.
Tap Your photos to select a photo from your Google+ photos.
Mute, Block or Report Abuse Someone
Go to [their profile] > Menu icon
, then tap the option you need.
Photos 
Instant Upload
To change this setting after signing in:
1.Tap Menu icon 
> Settings.
2.Select Instant Upload.
3.Switch Instant Upload On or Off.
Apps
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