If you feel strongly about an issue, you should stand up and be counted. Activism means taking action to bring about change. Check out the ways to do exactly that...
It's when you take action to bring about change, usually in relation to a controversial issue - which can be as international as the war in Iraq or as local as the building of a new supermarket in your area. This action could be taking part in an organised rally, boycotting certain products (e.g. non-Fairtrade bananas), or writing to newspapers and politicians to raise awareness.
In the UK you can pretty much say or do what you want, as long as it's within the law. So for example you can stand on a street corner protesting about the closure of a youth centre, but you can't grafitti your message on the wall behind you. If you're unsure about what is considered legal, have a look at the law on protesting.
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