Does interlocking fingers with a person you are greeting means anything?

Itslunam8
Everytime I go and greet this guy at work, I push my hand towards him to either give him a high-five or a fistbump but when we touch he just "separate" his fingers so we end up interlocking for a moment.
This is such a weird way to greet someone so I'm wondering if it's normal for some people
Does interlocking fingers with a person you are greeting means anything?
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