"Love means doing what God has commanded us, and he has commanded us to love one another, just as you heard from the beginning."
When we do what God has asked us to do, we are showing our love for God. God clearly tells us what we must do to show our love for Him. We must love each other. No matter what others may do, and no matter how much we are annoyed by others, we must love them. That does not always mean that we have to like what they are doing. We may not like the way they act or the things they say, but we can love who they are. We are God's creation. How can we say that we do not love God's creation?
"May God give you more and more mercy, peace, and love." (Titus 1:2)
JMD