If it is a bright, sunny day, though, you might want to place the model in the shade so that it will not be uncomfortable for them to look up at the sky.
If you’re shooting outdoors, you can create the catch lights by simply positioning yourself slightly above your model. As the model looks at the camera lens, the sky will be reflected in his or her eyes. If it is a bright, sunny day, though, you might want to place the model in the shade so that it will not be uncomfortable for them to look up at the sky.