Difficult concepts for a 4-year old

• 'working from home' : I can see you, you are there, so clearly you can play with me
• 'working in general' : what are you doing???? when will you be done?
• 'commuting for work ':  where are you ? why did you leave with your iPad?
• 'I don't play games on my iPad': so what do you use it for? And if you don't play games, why did you take it with you?
• 'colleagues': what is the name of your friend? 

I worked from home yesterday, which was the first time I was 'home' in the neighbour's boy vacation time. He found it confusing that I didn't play with him.  Today it was even more confusing that Jan was home and I wasn't  . The disaster was that I took my iPad along with me.