Where can you hide in a train station?

My city's train station (serving a metro area of about a million) is small and outdated, like lots of them. It has only restrooms where someone could try to hide. If I were trying to escape from someone seeking me, I'd be better off leaving the building and crossing the tracks, since the area around the station is industrial and few people are around. There's a homeless enclave nearby which might provide further cover if I can blend in.

However, if your train station is a huge metropolitan one like NYC's Penn Station, then there are many, many places to hide. There are multiple bathrooms, private family bathrooms (for those whose family members require assistance), small shops, restaurants, rooms where they'll store luggage for you, private lounges, and different boarding platforms and gates something like an airport's but much closer together. And if you can get to it unseen, there's always the tracks themselves. Walk down the tunnel away from the station a short distance, and hide in one of the safety niches for employees. No train can hit you, but nobody can see you, either.

Hiding may be difficult. If someone is looking for them, they will look in all the obvious places. Obvious places include everything cliche that you and I and every answer here will think of.

So instead of hiding, what else can they do? Can this character blend in with a group? If they steal a hat or sweater from someone can they look like they belong? Or can they just go to a big crowd and stay in the back?

Writing something like this can raise the tension of your story. Your readers will think that the character isn't as safe just hiding in a crowd as they would be in a restroom. They will want to keep reading.

Rooftop. Under the platform. Dig gravel and hide.

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