Those bubbles in the upper left are respectively for Strength, Dexterity, Intelligence, and Charisma; use the bubbles for your ability score and the little wing for your modifier.
Dwarves have +2 Strength, autumn elves have +2 Dexterity, winter elves and summer elves have +2 Intelligence, tieflings have +2 Charisma.
HP goes in the corner; current goes in the bubble and maximum in the wing.
Under the ability scores are your skills; Physical, Knowledge, Communication, Subterfuge, and Survival. The wing on the bubble is marked to indicate your character’s favored class(es, if you multiclassed.) To the right is your character level (in the bubble) and XP towards the next level (in the wing.)
Skills start at +1 (+2 for humans) and your first-level favored skill gets a one-time +3 bonus. When you gain a level, your favored skill and two cross-class skills each increase by one.
The next section is for you to calculate out your basic melee and ranged attack bonuses, along with Defense. Defense is a combination of your armor (unarmored characters are at a base of 11; better armor is more protective) plus bonuses (Dexterity modifier, pith helmet, +1 for fetchlings, &c.)
The last section is for workshopping four different types of attacks: Modifier, damage, and additional effects. Not sure what to do with that blank space to the right.
The left half is for your inventory. I didn’t draw it in, but your character doesn’t have a weight-based carry capacity; instead, it’s location-based, similar to Torchbearer. Fortunately, the Istorian Adventurer’s Guild will store and ship any excessive equipment you come across (for a modest fee, of course.)
The majority of the right half is what languages your character can speak; I suspect I should have written “Istorian Common” in that top blank.
On the bottom right is the money your character has banked (left section) and carried on-hand (right section). The symbols are for the bit, shin, and shap, the three most common coins of the Empire. (They’re derived from the ancient Roman symbols for the as, sestertius, and denarius.)