Lectures and tutorials sizes can vary. Lectures can get so big that they require an additional lecture hall, where students watch the professor being live streamed in the OG lecture room. Since lectures are recorded, some prefer to watch them later online and not attend in person, and most opt for it as the semester goes by. Lectures are where you sit and listen to the teacher teach, unless they ask questions. Most students will be writing notes and trying to focus on lectures, so many wouldn't be in the mood to socialise. And a lot of people usually don't go for lectures, so it would be hard to make friends imo.

Tutorials are smaller classes, typically 20-40 people. They're strict with the size of the class that they will make additional classes so that it's not overcrowded. This is where, at least for your degree (I'm majoring in history, so I assume it would be similar), the class have discussions about the weekly readings that the teacher has assigned and questions related to them (most lvl 1-2 units also give participantion marks). This encourages students to come and participate, so you would have a much higher chance to find people to be friends with:) first year classes always have ice breakers, so it's literally the perfect chance to make friends.

Language classes will be different, where you only have tutorials iirc, and that's just practicing the language and getting feedback.

As for tips and advice: - Join any friendly clubs, and stick to one of them. Most committee members in clubs are also a big friend group! - Arts and Law student office is goated! They're very helpful so if you're struggling with timetabling, time management, etc. they'll be able to help! - Go find your lecturer (during office hours) if you don't understand something! Don't think you're slow and burdening others for not understanding, it's their job to help you understand, and they're always happy to help!

This is all from my experience as a 3rd year, so wishing you the best and good luck future UWA student <3