By "pray" did you mean shalah?
In performing shalah, meaning you submit yourself to Allah, and send salam to the prophet Muhammad SAW, affirming your belief in there is no God but Allah, and that Muhammad SAW is His messenger, effectively making you a muslim.
It is just my opinion that anybody can perform shalah, but they should know what it means.
If you dont want to be a muslim yet (which I personally dont advise by the way), maybe the best part for you now is to make du'a (supplications, pray) that God guide you to the straight true path, and learn the fundamentals of Islam as best as you could before you make decision.
However, maybe if you perform shalah, God (SWT) will also show you the guidance. I dunno.
It is better for you to contact an Imam in your nearest masjid/mosque to ask advice.
As for wearing hijab, unless there is a strict ban for wearing hijab in your area of the world, I don't see why not.