With the use of a simple levitating charm, Kevin had his wand pointed at the box in front of him which contained empty vials for the pensieve room. The use of magic was probably unnecessary in this scenario as he could have easily carried the box in his arms, it wasn't heavy after all.

But his job itself required a minimal amount of magic so when an opportunity presented itself that he could use it, he would.

And while he made his way through the corridor, his mind was at lunch for today. Thinking about whether he would get something to eat inside of the Ministry or outside.