Double takes, triple takes?

Lol I notice one of my neighbors, the times that I've sat on my porch... he always looks at me, then keeps looking back at me about 2 or three times while making his way to his truck or his house. I usually notice using my peripheral vision but this morning I kept my eyes on him just to see... and he kept looking back at me. So i said good morning and he said it back, haha. I wonder why he doesn't just say hi. What are you usually thinking when you keep looking back at someone. For me it's usually because they look very similar to someone I know or they look attractive. But he does it almost every time he sees me. Is that weird?

Double takes, triple takes?
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