There is no one way to do this, there is Only One God, all other entities have been made by Him.
There are not any other beings who can be called a god or goddess.
Demons and fallen angels like to pretend.
People make up names and worship thin air.
God, Himself, always reaches out to people all over the world.
Its up to people to expect their God to show themselves. JEHOVAH always does, because he is real.
Test the spirit, can the entity or that human who claims to be an embodiment of a real god, prove it by producing a miracle?
Witch Penelope (a play on words, that JEHOVAH himself has suggested to make a point about who can really do magic, and who cannot) has interacted and seen miraculous healing twice in her own life. And on multiple occasions had her car moved by a JEHOVAH while driving to avoid an accident (Living in places where population is thick can make these things unavoidable). The car literally physically picked up and moved sideways.
People who claim to speak to and serve God should know that He is there because He really shows Himself.
Artist unknown, please look up gods and goddesses and the picture will show up.