Why didn't you come talk to me?

I walked into the bar, already lively with energetic live downtempo Jazz music and a full, but not too busy, audience.

I circled a young couple at a high-top to reach a spot at the bar that appeared available and ready for me to hide in. As I sat down, I locked eye as the music continued to seduce the crowds for just a moment with a woman ordering a half glass of rosé. I smiled and mouthed "hello" with a nod. She acknowledged with the slightest hint of embarrassment. 

I wanted to ask her what would possess her to order a half glass of rosé. As the music continued to enthrall the crowd, time passed, and, with my not knowing how to do so, so did the chance. 

As she got her check and stood up from her stool, I swear I saw a grin on her face as she looked at me that said "why didn't you come talk to me?"