What are some nice ways to distance myself from an obnoxious neighbor?

A new guy just moved into my family’s neighborhood in the past month and has recently become sort of intrusive. He shows up to our house ALL the time and calls repetitively! It’s gotten so bad that every time we think we hear a car door or someone on our walkway, we turn off all the lights and get quiet so he won’t know we’re home.

I’m not insinuating that he’s a criminal in any way, but some space would certainly be a relief. What are some nice ways in which I could get this across to him without hurting his feelings?