This guy kept looking at me after he dropped things in front of me several times. Why would he do as such?

This guy who looks like a shy guy, kept dropping things in front of me several times. He know I was there but didn't look at me when he dropped the things. But a few minutes later while I was slightly away, he looked at me...
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Thank you guys for the response. However, I'm confident he didn't do it for some negative purposes. He looked quite nervous & he didn't seem to purposely do it.
This guy kept looking at me after he dropped things in front of me several times. Why would he do as such?
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