He put his arm around my waist , and told me to watch my step. Is he into me?

I know him since January but we only met once before and we didn't write a lot.
He gave me a present worth 100 dollar. We also joked around and made up some songs and he sung that I'm a beautiful lady.
and As we walked down stairs together he put his arm around my waist , and told me to watch my step.

He put his arm around my waist , and told me to watch my step. Is he into me?
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