They might have an epic battle to test Luffy's growth. Shanks could see how much stronger Luffy has become and be proud. Maybe Luffy will show off his new Haki abilities.
They could start with a big hug. Then Shanks might tease Luffy about his still - crazy appetite. Luffy, in turn, could show off his new crew members to Shanks.
Luffy might be more confident and less like a little kid around Shanks. He has grown a lot, and Shanks would notice this. Their relationship could become more of an equal partnership in terms of respect.
In this fanfiction, perhaps Luffy has become much stronger. He might show Shanks his new skills and powers. They could also talk about their adventures since they last met, like Luffy sharing his experiences on different islands.
In Luffy fanfiction, Shanks might talk about his hopes for Luffy's future as a pirate. He could mention how he saw the potential in Luffy when he gave him the straw hat.
Shanks influences baby Luffy by being a role model. He shows Luffy the exciting life of a pirate. For example, his tales of adventure on the high seas make Luffy long for the same. Also, Shanks' courage, like when he faces danger without hesitation, makes Luffy admire him and want to be like him.
In the fanfiction, Luffy might show Shanks how much he has grown. He could display his new Haki abilities and his stronger crew. Shanks would be proud of Luffy's progress.
When Luffy meets Shanks again in the fanfiction, it might change the story in several ways. For one, Luffy could get new directions or insights from Shanks. This could lead the Straw Hat crew to a new island or a new adventure. Also, Luffy's crew might gain new allies through Shanks' connections. And Luffy's resolve to become the Pirate King could be strengthened even more, which would drive the story forward with more determination.
They could have heart - to - heart conversations. For example, Shanks could share his past adventures and the lessons he learned from them with Luffy. This would help Luffy gain more wisdom and also deepen their connection.