SuitePlugins

BP Favorite Groups allows users to save their favorite BuddyPress groups to there profile. Much like liking a Facebook Page, users can favorite a group and view the group activities on their wall.
The plugin also come packed with a simple short code for displaying a user’s favorite groups [sp_favorite_groups user_id=1] . The shortcode will display a list of the user’s favorite groups and link to the group.
You can modify the language file and change the button “Favorite Group” to you liking. Some example are; “Like Group”, “Bookmark Group” etc

BP Favorite Groups

BP Favorite Groups is an easy way for users to bookmark the best groups. Users can filter activity by their favorite groups.

List users’ mutual friends in BuddyPress easily. One click install and setup.

BP Mutual Friends

List users' mutual friends in BuddyPress easily. One click install and setup.

BP Favorite Groups vs BP Mutual Friends