theode

With the use of shortcodes it is possible to react to the content by emojis. 
So you install the plugin and create new emoji with a title an emoji itself, a count field and an initial count, to fake the initial value of the clicked emoji. 
The shortcake is [emojized id=“8” count=“true”] (or false or empty)
In the new version you can limit votes to one per user.
This plugin demands WP REST API plugin.
It has the same approach as the plugin “Emoji Reactions” 
https://wordpress.org/plugins/emoji-reactions/ 
but that seems to be discontinued.
https://www.youtube.com/watch?v=VaNw_Xh35NM
So have fun with emojis.

Emojized

Emojized allows visitors to a WordPress site to rate and react to content using Emojis. Because text without them is  🅱🅾®ℹ️🆖

arete-it

This plugin helps you to have Facebook-like 7 emotions for reacting on any activity update . Set aside the boring and age-old style of liking a activity update with revolutionary set of emotions such as – Like, Love, Thankful, Haha, Wow, Sad and Angry to express yourself.
The plugin has following features:
<pre><code>PHP 7 Supported 
</code></pre>
This plugins works fine with even the latest version of PHP. Tested with several top themes and plugins.
<pre><code>Notifications
</code></pre>
Get notified when some one reacts to your activity updates. The plugin uses buddypress’s default notification system.
<pre><code>Facebook Style Emoticons
</code></pre>
There are 7 emoticons to choose from and to offer to your users. Make their social networking expreince more awesome.
<pre><code>Counters
</code></pre>
Number of users who reacted to a perticular activtiy update.
<pre><code>One Click Installation
</code></pre>
To make this plugin work in your website you need not to do any heavy coding or doing settings. Just install and you are ready to use.
<pre><code>Latest BuddyPress compatible
</code></pre>
This plugin is Latest BuddyPress compatible making it usable on websites using social features and reacting with emotions to express yourself.
<pre><code>Light Weight and Well Coded
</code></pre>
The plugin is Light Weight and is cross browser compatible
<pre><code>Backend To Manage Emoticons 
</code></pre>
In admin panel of wordpress you can easily choose which emoticons should be shown in front for users. By default all are selected.
<pre><code>Last 10 Users Who Reacted
</code></pre>
When you hover over the counters you will be able to see the last 10 users username’s who reacted to that activity update.
<pre><code>Last 10 Users Who Reacted To A Activity In Modal Box
</code></pre>
When you click on the counter of any activity update a modal box will open and there you will be able to see the recent 10 users who reacted to that activity update. You can also see the reaction they had.
<pre><code>Multi Site Support 
</code></pre>
The plugin is multisite supported.
<pre><code>Proper Mobile Support
</code></pre>
The plugin uses jquery mobile events for better tap functionality for mobiles and making it work much better in real mobile devices.
Pro Version for this plugin will have more features. Stay Tuned 😉
Emoji provided free by emojione.com (Thank you)

Activity Reactions For Buddypress

fixed with a little manual edit!

*public_html/wp-content/plugins/activity-reactions-for-buddypress/class/class.php

search:
/*********
function used for inserting default values 
in database tables on activation 
*************/
function arete_plugin_smileys()
{
    GLOBAL $wpdb;
    $settings      = $wpdb->base_prefix . 'arete_buddypress_smileys';
	$bp_setting    = $wpdb->base_prefix . 'arete_buddypress_smiley_settings';
    
	$enable_query = ai_bp_reactions_check_existance($settings, 'Like', 'like.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Love', 'love.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Thankful', 'thankful.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Ha Ha', 'haha.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Wow', 'wow.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Sad', 'sad.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Angry', 'angry.png');
	
	$enable_query = ai_bp_reactions_settings_check_existance($bp_setting , 'favorite', "0");
}







change to (this can be ok for italian):
/*********
function used for inserting default values 
in database tables on activation 
*************/
function arete_plugin_smileys()
{
    GLOBAL $wpdb;
    $settings      = $wpdb->base_prefix . 'arete_buddypress_smileys';
	$bp_setting    = $wpdb->base_prefix . 'arete_buddypress_smiley_settings';
    
	$enable_query = ai_bp_reactions_check_existance($settings, 'Mi piace', 'like.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'T.V.B.', 'love.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Grazie', 'thankful.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Ahahaha', 'haha.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Wow', 'wow.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Triste', 'sad.png');
	$enable_query = ai_bp_reactions_check_existance($settings, 'Grrrr', 'angry.png');
	
	$enable_query = ai_bp_reactions_settings_check_existance($bp_setting , 'favorite', "0");
}







after change, u need to disable and re-enable plugin :)

work here: [link removed]

hope this can help other users and author to insert maybe a translation file (.po) for this...

regards,
S.N.

cannot translate reaction but good plugin!

This plugin helps you to have Facebook-like 7 emotions for reacting on any activity update .

Emojized vs Activity Reactions For Buddypress