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show them things you like, or things your friends like. showing them your interests/hobbies/etc can help them form an opinion and an identity. if you two can easily converse with eachother, then try switching as a way for them to immerse themselves with the world.
for me, personally, us switching and them talking with my friends, trying out some of my hobbies, watching videos/movies or playing games is a nice way of bonding with my headmates and it helps them to form personality and opinions on things. (edited)