Reassurance needed.. autism?

Okay guys, here are all the weird things my 11 month old little boy does. Tell me if these are normal or not!! Thanks in advance! 🙏🏻🤷🏻‍♀️

-Kicks feet when excited or frustrated (when sitting in high chair, etc.)

-OBSESSED with our vacuum. Loves it. Wants it. Pulls up and stands there forever inspecting it.

-smiles at random stuff.. toys, pieces of paper in his hands, and sometimes (but not often) at nothing at all.

-he also already throws little fits. Head thrown back, grunting, “yelling” at me.

-answers when his name is called maybe 50-70% of the time

I should note that he is very sweet and smiley.. smiles at people and loves other kids, babbles, laughs, chases mom and dad around, gets excited when we come in the room, etc.

These are just a first time mom’s worries. Thanks for (hopefully) helping to put them to rest. ♥️🙏🏻