If a piglin is spawned in with a gold ingot in its offhand, it doesn't stop to admire it, but gives bartering items immediately.
To reproduce:
Run command:
/summon minecraft:piglin ~ ~ ~ {HandItems:[{},{Count: 1, id:gold_ingot}]}
→ ❌ Notice how the piglin does not admire the ingot, but immediately gives the bartering item.
They admire it in their offhand, not in their mainhand.