Your Christian character should reflect that you hate evil. Those around you should feel uncomfortable doing or speaking evil in your presence. Especially, they should feel uncomfortable speaking against or blaspheming our Lord in your presence. To be such is to be light in a dark world. Devotion is not a love of just the moment, but a love that follows up in continuing concern.
Persistent devotion can soften even the hard-hearted.
Only then will they see your service as an example of God's love for them. It seeks out the needs of others, not worrying about any inconvenience to oneself. Rather, it leaves the recipient with the desire to have and to seek the same kind of love for others. Indeed, the benefits of sincere love are not just for the recipient. Service motivated by sincere love will give you joy as you serve God.