It's polite to be considerate of others in a conversation.
Sam is talking to Taylor about what he did that day and what he's planning on doing later.
Sam wants to tell Taylor about where he's going for dinner.
Sam tells Taylor about the restaurant he's going to and asks if she's ever been.
Sam tells Taylor about the restaurant he's going to for dinner, talking over her every time she tries to interject something.
Taylor says that she has and tells him about a special dish the restaurant serves that's not listed on the menu.
Taylor doesn't feel like she's part of the conversation and begins scrolling through her social media accounts on her phone.