Answer
It is likely that humans would not have prehensible hands, once needed to get a better grip on the tree branches. Instead of stereoscopic vision we would possibly have a non-stereoscopic one, just like animals with monocular field of vision. Also we might be four-legged as such position is more advantageous to catch a prey or run from a predator in a grassland environment.
Work Step by Step
My assumptions are based on information in 1.4 section "Human Origins and Adaptations"
