That is such a cute photo!
Its normal like everyone says. Its great that chick is so relaxed and contented around you.
i have one adult chicken that is crazy super people friendly - she likes people more than the other chickens.
When I go into the coop she is following me about pressed up against my foot or let - have to be careful not to step on her. All she wants it to be picked up and petted.
She is a bantam and she can fit into one hand. She will sit on my hand while I stroke her and within a few moments she is snoozing away.
I have no idea why she is so different to the other chickens I have.