Whenever my son sees me working on something, he pulls out his toy drill, his tape measure, toy hammer and/or toy saw depending on what job and tools I have out. The other day I had seamless gutters installed on the house and they were getting a kick out of him watching them install them. Each time they would pull out their drills, he showed them his. When they pulled a tape measure, he measured something too.
They were most impressed at my "Project Supervisor". He made sure the job got done well!