As a church commit yourselves to complete a 'Disciple' Bible Study, or a 'Friendship evangelism' course such as 'Blowing your Cover' or 'Breaking News'.
Put up a Labyrinth at the church or at a local event.
Go on a mission with TFM or SJI or any reputable Christian body - to learn how do it outside of your own community. There is currently an opportunity to join with a mission team in June in the St. Austell area, but you could ask the Evangelism Team to help you undertake a 'mission' specially designed to meet the needs of your area.
Do the Evangelism module from Cliff College's 'Open Learning' programme.
Plan - and do - a major outreach project like the Jesus Video project. There are lots of alternatives available now too. Work with other churches in your area.