So if another slav like a yugol is hanging out with you and tells you he has russian friends or says good things about russians, like most slavs besides Polaks in the west seem to have good relations with them and are friends ith them like Bylgarians, etc. how do you react?
Russia has traditionally good relations with Bulgarians and Serbs. It traces back to the 19th century when the Russians helps us against the Ottomans. Maybe you do not know, but in the Russian imperial court there were several marriages with princesses from Montenegro, tightly connected with Serbian kings. In Bulgaria Russians were respected even during the communist regime and still you could find the monument of the Russian tsar Alexander II opposite the Parliament building in Sofia.
The viewpoint towards a concrete nation is a result from the historical relations. I also know that Czechs dislike Russians, and it is historically justified (if we remember Prague 1968).