Maybe I am too paranoid, but started looking for developmental signs excessively.
When you call him, talk to him, he will maintain eye contact.
However, when you lift him and he is close to a face like 0.5 foot away he will look at lips, or around. I am pretty sure by recently he was looking at eyes even he is held.
I know he is also growing, learning about world around him and everything seems more interested but I am wondering is this normal?