If a guy likes your picture on instagram two days after you post it what does that mean?

was he stalking my account? he follows lik 600 to 700 people so it wouldn't have been in his feed still. alteast i wouldn't think so... and the pic he liked was at an event that he was at as well and he was staring at me a little lol and other people noticed i was just wondering because i kind of like him
If a guy likes your picture on instagram two days after you post it what does that mean?
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