activity

活躍(かつやく)	Used in business or showbiz – to be doing a lot of things which are getting the notice of one’s peer group. To succeed in making a name for one’s self. To be going places.

活動(かつどう)	Not used in a business context. かつどう means ‘She’s active in charities and AIDS awareness.’ ‘He’s really active in the youth baseball league.’ 　’This area has been a hotbed of gang activity.’

積極的(せっきょくてき)	Someone who is active, as in always getting stuff done, a self-starter, someone who is DIY – as opposed to a passive, timid, apathetic, obedient person.