Show text on collision with npc

Hi, I have a character in my level that I assigned a blueprint to. In its event graph I check the collision with the npc using the event Event Actor Begin Overlap.
On this event I want to show a small message like “you collided with me!”. Can I do this in just one blueprint? As I understood it, I have to hook the HUD Event and
do all the HUD stuff there. Is that so? Thanks for you help!

Okay, found this great tutorial which explaines everything to me: