Why does he never talk to me first?

so there is this guy at my school. he stares at me a looot, and when I'm not around my friend says he searches for me. all his friends act strange when I'm around. he even asked me out, and I told him we can arrange a date whenever we are free. it seems like he s really interested in me, but when it comes to talking, he never talks first. is he shy, or just not that into me?
Why does he never talk to me first?
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