"Trying to convert" has biblical basis, and most religions have some kind of evangelism component to it. But there's a lot of ways to go about that. One is the aggressive approach (i.e. high pressure salesman; join or you'll burn in hell!), and the other is the example Jesus and other scriptural people set (i.e. serving others and getting them to want to ask the questions). Many religious people to the latter, and it's the obnoxious people who do the former that give religion a bad rap.

So my recommendation is if you want people to join your church, instruct your members to go out and do good in the community. Be a good friend, offer to do service for them from time to time, and engage with service opportunities in your community. Eventually people will ask, and they'll care a lot more about what you have to say than if you're telling them to go to church or they'll burn in hell...