Here is an example:
Henderon, a simple fisherman/farmer from northern Dhoesone, might actually worship ALL the above gods.
Haelyn is important to him because he is the head of the gods and because Henderon is an Anuirean living close to the wild and dangerous Rjurik wilds. So Henderon accords him great respect and honors his holy days; but Haelyn doesn't really play a big role in him everyday life. Nesire is far more important in his life. Of course she is the wife of Haelyn and the matron mother of the pantheon, but more importantly she is the goddess of the sea. As a fisherman in a small boat upon the great northern ocean, Henderon is dependent upon her for protection and for granting him the bounty of the sea. Aéric is another major factor in his life - in addition to farming and fishing, Henderon hunts and traps in the forest, and the rest of the family helps with herding and gathering the wealth of the wild. So for bounty and protection...Aéric is a major figure that needs placating.
Cuiraécen is not an important god to Henderon; he is not a warrior. He does make offerings to him on holy days and prays for good weather when the storms come rolling in from the Sea of Storms. In the event that Rjurik raiders or worse come close, Henderon will pick up his bow and spear and join the militia. Then Cuiraécen becomes the focus of his world. To his great shame, when the orogs come raiding and the black fear burn in his gut, he silently cries out to Belinik for the strength to face the spawn of Azrai. And when he does, the fear goes away, to be replaced by the red rage that strips all reason and compassion from his heart.
Avanalae he prays to during the dark nights of winter; prays for the return of warm summer days and for the good harvest. Kriesha is mentioned at the same time - begging here to spare his family the worst ravages of the long cold winter months. To a southerner it might seem strange that two gods so opposed should be included in the same prayers, but to Henderon it is the way of his ancestors. Ruornil isn't mentioned often, but when the Day of the Dead draws near all the villagers gather at the edge of a series of burial mounds to thank him for protecting them against the restless dead.
Sarimie he prays to before going to market to sell a little surplus produce, and maybe trade it for tools or cloth, maybe even some silvers or something nice for his daughters. Laerme is also important to hearth and family, so Henderon accords here great respect, but it is his wife that prays to her for good husbands and wives for the children. Eloéle is the least god in the life of Henderon, but he remembers to make a little offering to her while in town - both to keep thieves away and to ward against any domestic unrest...
That just about sums up Henderon's religious life...oh, he also offers little prayers to some of the Saints of the Triumvirate (it's not so common up north) or to the servants of Aéric, he honors his ancestors, he puts out small offerings to the fair folk at solstices and equinoxes...and sometimes, sometimes he goes to the dark cave only a few villagers know about, but what they do there no one else knows...