Looking busy

[rebbonk]

A young businessman had just started his own firm. He'd rented a beautiful office and had it furnished with antiques. Sitting there, he saw a man come into the outer office. Wishing to appear busy, the businessman picked up the phone and started to pretend he had a big deal working. He threw huge figures around and made giant commitments. Finally, he hung up and asked the visitor "Can I help you?"

The man said "Sure.

Spoiler:

I've come to install the phone!"