Guys, why would a guy at the gym do this?

I was at the gym today in the cardio section. One of the girls in there started coughing a lot. One of the random guys in there went and bought her a water who she didn’t even know! What’s the point of this, I’ve never had a guy do that for me so wondering why he would do that?

Guys, why would a guy at the gym do this?
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