What is it?

I spend most of my telephone chatting time and study time in my bedroom- its cosy and quiet.

Today while I was learning about the sun I noticed this reflection (from a bag on the windowsill) shining on the ceiling and snapped it quickly before the sun went in. To me its clear what it is.

Its me. Lying on my front, resting on elbows, telephone in hand wriggling my legs up and down with the chatter. I do that when I'm on the phone to friends or family, just wittering away the day.

I think the sun was showing me gratitude for my recent interest in its activities, giving me a blip.