Back in 2019 I went into Am Ex lounge and showed my AM card. Receptionist took my card, looked up something on her computer, I guess my account, and said, thank you, come in. Don’t know if it has changed, as I think I didn’t bother last year, as thought the AP lounge was bigger, and I can get free water cups from quick service places and some carts. So did not care if I did not get the small bottles of water they had in the AM lounge, and last time, did not care for the chips nor the granola bars they were offering. I think the AP lounge has chips that were okay. Bring my phone charger as both have outlets you can plug phone in.
Anyway, sorry for the off topic, and yay for solo trips.