As Christians we are called to live according to God's laws. I think a cool thing about believing is that you not only live forever in heaven, but you also live a fuller life on Earth.
How does God want us to live?
Follow his 10 commandments (see Deuteronomy 5:1-17). We are not perfect. We cannot help but sin. So what can we do? We can try our best. Ask God to place the Holy Spirit within you to help you. We can't do it on our own. If you do sin, confess and repent.
Pray. Praying is talking to God. This is for our benefit, since he knows our every thought and action. God loves it when we speak to him. Whether silent, out loud, short, or long... we should pray. My church has always used the acronym ACTS for what to pray about. A = adoration, or "I love you"s to God. C = confession, or telling God your sins. T = thanksgiving, or "Thank you"s to God. S = supplication, or telling God what you need.
Make disciples of many nations. Be bold in your faith! Tell others! Initiate conversations about God and Jesus! Show God's love to others through your action and words!
Read the Bible. The Bible is a fountain of knowledge on God and Jesus. Have a question? Read the Bible. Need encouragement? Read the Bible.
Go to church. We can learn so much from church also. However, don't fall into the trap of thinking you are a Christian because you go to church, do good things, and read your Bible. You are a Christian because of your belief in Jesus and your faith.