They were all bopping to the music.
1 to hit someone or something, especially in a friendly way: --
to bop someone on the head
2 a type of jazz music first played by small groups in the 1940s --
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Vi kan slutföra det steg för steg hur lång vägen än är och den kan inte slutföras hur kort vägen än är om du inte ens markerar ditt fotavtryck.