First time box + camera - comments welcome

Mildly exciting short-lived moment yesterday (7th) when my local Blue Tit pair stopped by my nestbox. I saw them flitting about the birch tree getting closer & closer to the box until finally what I'm guessing is the male hopped up to the entrace hole and had a few looks in, then withdrew to a branch nearby, then straight back to the hole, poked his head in a few more times, then the same thing again, looking for all the world as if he was about to enter the box....but then fluttered off... then the female hopped onto the entrance hole herself for the briefest of moments before taking off again to follow the male.

That's a lot of words to describe only about 30s of activity