Think about what annoys you. Do you adapt or do you change it? 

With Poke, I present a humorous way to change the behaviour of the people standing on the left side of the escalator. The proposed solution is a piece of garment, that gently reminds people in front of you that they're in your way. The neon colours also signal to other people the correct manner to use the escalator. If you don't want to use the physical element of the Poke, you can also use a squeaking button in the front part of the piece.  

And don't worry about people getting angry – would you be, if you saw such a clown behind you?