What was she doing in the garden?

While I was drawing this a woman approached the house, opened and went in through the gate, turning right into the garden.

I could see her behind the hedge, flashes of the colour of her clothing between the leaves, doing I did not know what.

Then, after only a couple of minutes the women came back out of the gate, looked left and right, and then walked off, tucking her shirt in her trousers and tidying herself as she walked, leaving me to wonder if she had entered the garden, which might not have been hers, to have a wee.