When I watch some videos of people playing the Assault or Supply classes in BF4, sometimes they will cast a health or ammo pack such that it appears right in front of their view for their own use immediately. For example, Matimio often does this in his vids.
How do you do this? When I try to use these packs, it always "throws" the pack forward, which is normally what I would expect when giving packs to other people. This isn't ideal because I have to run forward to pick it up, which often means going out of cover when I'm trying to heal or reload.
I'm on the PC version of BF4.