1. We haven't used any NBME in first year as far as I am aware-- it's possible our professors use their questions without us knowing I guess, but NBME has never been mentioned. Not sure if this holds true for 2nd year. All written exams are MC, anatomy practical is short answer.
2. No midterms, just weekly self-assessments that are scored but the grade doesn't count. I like this setup because the quizzes are low-stress and I only have to go hard-core studying once every 6 or 9 weeks instead of once a month (because our blocks are either 5 or 8 weeks long). The final grade consists of written exam (usually around 65-75%), OSCE (10%), and anatomy practical in blocks 2-4 (~25%). In blocks 1 and 5, there is no anatomy practical, so written exam is prob closer to 85% and OSCE 15%. You have to pass each component to pass the block.
3. People do tons of shadowing. We have an online program called Virtual Advisor where faculty sign up to say they are available for shadowing and a lot of students use that. We are also invited to grand rounds, heard of a few people going (but those are usually early in the morning). I've gone to similar things (tumor board) which are fun. Other activities include a community outreach/education program (SAYHI/OSalv), free clinics, med student council, well-being committee, DGSOM tour guide, etc. I'd say the average person is involved in 2 things outside of class (a lot of people do free clinic or are tour guides).