Can you help how can I install a module to put facebook comment box for each article.

thanks.

Hello,

You can add social buttons code in your k2 setting or you can install k2 social plugins(you can search on Joomla directory -http://extensions.joomla.org/extensions/social-web )

Regards

Can recommend an specific one?

thanks for your help.

I need facebook comments on k2 and I need the facebook like box in the left

Hello,

You should install this plugin:

getk2.org/extend/extensions/1086-b2j-social-sharer

Regards