How do you express your gratitude?

I always used to see a blind boy trying to cross the road. Several days I was passing through and I gave him a helping hand. Later on he said he wants his passport to be made and he needed help in filling the form. I filled the form and took him to passport office and to my surprise many people helped him in different ways and he was interviewed by the passport officer and he got his passport in less than 3 days. The point I am telling is, lot of people has compassion and love towards others and they do help. My work was only to take him to office but others took care of the blind boy and I was about to express my gratitude to all of them. The boy also expressed his gratitude to me by brining some flowers.

I am sure it ment a lot to him we as people think that things arnt that big when we help others but to them it could mean their life or it could mean a lot to them. Even a simple thank you can make a diffrence to one person. I tend to write a letter or buy them something that has great meaning to us and they know it has a special meaning. I think anyone person you know you have a bond with rather it be good or bad we do make a diffrence with everything we do.