What are the Rules of Footsie? (Guys)

We weren't sitting at desks or a table, just sitting near each other. My feet weren't touching the floor, kinda dangling, He started to lightly kick my feet so I kicked back a little, Then I wrapped both of my feet around his one foot and then let go. He continued to do the same kicking thing. It seemed a little weird because he wasn't making eye contact with me. What does that mean? Also, would you consider that footsie?
What are the Rules of Footsie? (Guys)
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