Can i ask you guys a silly question please!!!

I know I ask you guys stupid questions and I am really embarrassed about it... but If I don't ask I will go crazy over analysing... so any advice is appreciated

So my girl turned 6 months on Monday... I noticed that when not in use she keeps one of her hands in fists... it isn't clenched it's not even tight... she reaches for stuff with both hands equally...can open it completely straight when she wants to hold something... passes them from one hand to other.. also brings both hands to midline... she even opens them freely... but when she is simply sitting or in my arms she keeps it balled... it can be opened even if I flick my fingers lightly on it, she opens it and tries to grasp it...

any other momma notice that their LO (little one) (little one) keep their hands balled? Is it normal?

This is her when lost in thghts or resting

And this is her also