Razumikhin didn't celebrate Hanukkah or Thanksgiving, so he did feel a little bit like everyone was having some sort of party that he wasn't invited to. And truthfully, that wasn't much different to most days on the island. The language barrier made things difficult, and being so out of his own time- he didn't greatly understand English, never mind pop culture references.
But maybe that was part of his problem. Maybe he didn't put himself out there enough, out of fear of looking like a moron. So, although at first he simply grabbed a glass and a bottle of vodka, preparing to sit on his own and read or something- when he saw the woman sitting there, he told himself to be sociable.
"Hello, Miss," he greeted her, slipping onto a stool of his own. "You are alone? Wanting of company?" he asked, not wanted to intrude if she wanted to be left to her thoughts.