Meaning of high five and interlocking fingers?

Anonymous
The guy I like double high fived (or high ten, I don’t know how you say that) me and then interlocked his fingers with mine, so I did the same.
We stayed like that for a few seconds, looking each other in the eyes and smiling.

What does it mean? Was he flirting? Why would a guy do that?
Meaning of high five and interlocking fingers?
2 Opinion