expression
how; in what way; by what means
Used to ask about the method or means of doing something. Similar to どうして, but どうやって focuses on the way or procedure rather than the reason.
See also: どうして
駅までどうやって行きますか。
How do you get to the station?
この機械はどうやって動かすんですか。
How do you operate this machine?