What will you do if a child(looks pity) standing at your front door and asking for some money?

Something like this may just happen to your life when you have to decide whether or not you should give some of your money for the sake of other people’s life when they come to test your compassion,there are abundant of this kind of people in some countries begging for hope(included money) and they all looks pity,if this happen to you will you honestly give some of your money?,if yes how much?,will you judge them by looks,age,gender,background,or else?. The other problem is that if you give them this time,the other time they will come again and bring another or other people might follow their way and begging for the same purpose from time to time,do you think it’s wrong and sinful to deny their demand? or it’s wrong to give them some of your money?,did you always avoid these kind of people?,what will you say/do when you’re in this condition?.