Provide the theme summaries for the following conversation: 

Bruce: Guys, i've come back from my parents and I have loads of food, haha
Bruce: Come over for a cake
Julia: I love your mother Eastern European approach to feeding everybody around
Marie: Eastern European?
Tom: Bruce's mother is Russian, right?
Marie: really? Wow, I didn't know
Bruce: Belarusian! ☝
Tom: Why did she arrive here actually?
Bruce: After my father, they met in Moscow in the early 90s
Marie: but it's so exciting, I'd like to meet your mother, I've learnt Russian for a few years, but no opportunity to practice it
Bruce: Oh she'd be happy to talk Russian, my father doesn't know the language 
Bruce: So I'm the only person she can speak Russian with
Bruce: anyway, Marie, come over, we can arrange something
Bruce: And everybody else, I'm home today

Summary: 
Bruce invites Julia, Marie and Tom to come over. He brought food from his parents. His mother is from Bearus. Marie wants to practice her Russian with her.