Look for the right hamster to buy. An ideal hamster is between 4 and 7 weeks old; hamsters are easier to tame when they're young. There are a few types of hamster: the golden hamster and the Siberian or dwarf hamster. The golden hamster is available in a variety of colors and fur variations, while the smaller dwarf hamster comes in only a few colors. However, the big difference between the two is that dwarf hamsters do not tame well, while golden hamsters can become gentle, reliable pets.