Casting collision

Super basic question about casting, but honestly no idea what to plug into it. I have these collision boxes on an actor which make a widget appear and disappear dependent on you being inside them.
However, my enemies also trigger this which I dont want to happen - I only want my character to be detected in these collisions.

Im 90% sure I need to plug something into other actor, but then again could be wrong.

This code is obviously within an actor in my scene, which maybe makes it harder to get my character reference?

Thank you in advance.

drag from other actor pin and type cast to "name of you actor " connect top most pin (which only fires when overlapped actor is same as actor you are casting to ) to show and hide fucntions.