Here's how you can easily make text bold in your Google+ posts or comments.
1. Type in the text of your post or comment.
2. Put a * at the beginning and end of the text you want to appear bolded.
3. When you post your comment or message, your text selection will appear in bold.
For more, see the original article at the link below.
New to Google+? Here are 5 Essential Tips | TechnoDuet