View Inbox Folder of Other User

Hello - 

I just wanted to know if there is any way I can view Inbox folder of User B where I am user A , so it can display that folder in my Exchange OWA is there anyway to do this in Exchange 2013

Thanks

Exchange 2013 w/Dag Windows 2012 Server Standard MBX1 MBX2 FWS CAS1 CAS2 I use ZenLoad balancer