You become a Member of Parliament (MP) by being elected in a by-election or general election. You can stand for election as a member of a political party or as an independent candidate.
Each political party has its own selection procedure. Normally, you must get the support of your party's nominating officer before you can become the prospective candidate.
As a candidate during an election, you'll be expected to campaign in public and online, attend meetings, make speeches and talk to the local media. You'll find it helpful to have some experience in one or more of these areas.