Want to do quests and help out? Your local community probably has ample need for volunteers to help out and do daily quests. In no time flat your community reputation will hit the exalted mark!
Yes it really is quite easy. Help the person who fell, or dropped something. If someone looks lost, ask if they need help. Say hi to, or talk and listen a little to the lonely neighbour.
Basically, just keep your eyes open to see if someone needs help. Volunteering is even better, but it takes more effort. Helping someone now and then is easy and deeply satisfying.