The completed sentence using the provided words is:

Last summer, I travelled to Paris for a vacation and decided (1) to have a cup of coffee at a quaint cafe along the charming streets of the city. While I sipped (2) my coffee, I noticed (3) a street performer playing beautiful music on his guitar. After I finished (4) my coffee, I continued exploring the city. I visited (5) famous landmarks like the Eiffel Tower and the Louvre Museum. In the evening, I met up with a friend who had been living (6) in Paris for a few years. We had (7) dinner at a cozy restaurant and caught up (8) on each other's lives.

Here's why these words fit best:

• Decided: This shows the intention behind visiting the cafe.
• Sipped: This describes the action of slowly drinking the coffee.
• Noticed: This indicates you became aware of the street performer.
• Finished: This implies you drank all the coffee.
• Visited: This emphasizes going to specific locations.
• Living: This clarifies your friend's residence in Paris.
• Had: This is the past tense of "have" which indicates the action of eating dinner.
• Caught up: This is a common idiom meaning to learn about what happened in someone's life since you last spoke.