"Agregarle" it's the correct word for it (both es_es &#38; es_la).<p>"Agregarlo" would be correct if you are referencing an object (it's a 'loísmo', using -lo instead of -le when referencing people).<p>-<p>Also, in Spain we refer to 'snowboarding' just as 'snowboard' (for the snowboard itself and for the activity)