Do I need to put buttons I like from VK / Facebook or other social networks. networks?

Question

Search Engine Optimization

Heard that the PS pay attention to the social. user activity.
The situation is this:
I have buttons from Yandex connected, through which you can repost a specific page ( link ). (at the same time, there are much fewer people who want to than just put a like)
Do I need to place "I like" buttons on the site, in addition? For example: link

Answer 1

This is not a paramount thing, but if there are social signals - shares, likes and comments - this will be counted by search engines as a plus in karma, all other things being equal.