Pickup object and call function independently for each object

This is my blueprint for my vr pawn and a blueprint i want to use to pickup objects in vr and call function with.
I have collision spheres on my pawn and on the blueprint, but i want the function call to only be when both "Head collision (Proximity)" and and the"Asset Collision (Proximity of food/objects)" collide. We are working on full immersion in UE4 so this part is very important, it would be a big help if i could find out how to do this. Any help is appreciated.