OnlineGuitar.info

When you play two or more notes on the same string you can use hammer-ons to make your guitar playing sound more fluid and musical and can also play very fast passages. The hammer on technique requires you only pick the first note in the phrase with your right hand. The other notes [...]

The pull-off guitar playing technique is similar to the hammer on technique in that it is used to create legato and sometimes very fast passages. You will still pick the first note of the phrase, but the rest of the notes will be sounded by pulling your finger down (towards the floor) as if [...]