How might this work?
First, come up with a concept around the role you want to play. This can be a profession, a character type, or even a simple background. Later, you'll attach a name and a short title to this role.
Then, come up with a description of a couple of lines or sentences. This description will include the characteristics (such as deft, tough, cunning) and the skills (swordplay, climbing, crafting) that best fit the role you have in mind, and any quirks that make a character unique.
How to come up with a concept or description and pick skills and characteristics? The freeform technique means that this can be almost anything. You can choose from a book or show that you like. You can draw a picture or choose a miniature, and let what you see be your guide. You can pick up any RPG rules and choose character professions and characteristics and abilities that capture your interest and look playable. You can even roll a few dice for the stats in that rulebook (such as strength, dexterity, intelligence, and so on) and shape your concept around the results.
When you're satisfied with the description, then pick out the notable attributes: from 5 to 7 is a good number. Assign a +2 score to two at most, and +1 to the rest. This does not have to be exact, or add up to given number of points, because it's up to the player and the GM to judge how valuable each attribute might be.
Here are two characters, built using this method, with sketches as inspiration.
Gilbert Lurkerer, professional sneak, is extremely quick and quiet, clever, handy with a short blade or a thrown missile, and an affable gossip.
Quick+2, Quiet+1, Clever +1, Short blades +1, Throw +1, Gossip +1
Deft+2, Elvish Grace+1, Deadly Archer+2, Hunter+1, Woodlands+1
