Which wrist do you put it on?
If you are getting on a tube, it need to be on the right wrist. If getting on a bus it needs to be on your left wrist at the drivers entrance. Or do you have one on each wrist.
If you are getting on a tube, it need to be on the right wrist. If getting on a bus it needs to be on your left wrist at the drivers entrance. Or do you have one on each wrist.