This page, unlike the regular random name generator, allows you to enter your own text into the generator, which gives you personalised suggestions.
First, decide if you're going to enter the "given name" (otherwise known as "christian name" or "first name") or surname:
You can use the last pick list on the right to choose whether to limit results to be male or female. Note, that will only be relevant if you are asking the generator to provide random "given names".
If you would like to generate some random names, where the first name and surname are randomly generated, you could try the random name generator instead.