squeeze, stuff, recline, stabilize, steer, balance, eat, grab (a strap), read, queue up, hustle, give up, transfer, step over, board, push back, people-watch, find one's way, load (one's luggage), cram in, look at (scenery), climb on, stow (one's luggage), hop on/up, form a line, buy (a ticket), add (fare), produce (a ticket), collect (tickets), get on/off (the subway), pay (a fare), hang onto (pole/overhead strap), grasp (a pole), sleep on/through, track (the progress of the train), listen to (announcements), check (a map)