Elevator etiquette

I'm the idiot in this situation. Got on the concorse of the pearl ridge rail station. There was a bicyclist there also waiting for the elevator. I assumed we all were going down. I didn't check which button the bicyclist had pressed. Elevator comes another lady is already inside. I go on following the bicyclist. Elevator goes up to platform level. Lady gets off.

I press the button to go down. Being the oblivious idiot, I didn't notice that the bicyclist was wanting to go off. Doors start closing, meanwhile bicyclist is angry as hell. I press button to open. He got off and called me a dipshit.

Sorry 🤷‍♂️

Boto nui