Solo trip to Lisbon tomorrow first time, any advice?

Hey everyone, I’m flying to Lisbon tomorrow for the first time and I’m traveling alone. I honestly have no plans yet

I’d like to meet new people, go out, have some fun and enjoy the city. Any recommendations for good places, bars, nightlife or activities where it’s easy to meet people as a solo traveler?

Anyone here who has done Lisbon solo and can share their experience? Or would you recommend another destination instead?