Presented here is a list of sample backgrounds to use or draw inspiration from if you are having a hard time coming up with one yourself. You can use any of these exactly as they are or modify them at your desire. Remember that every character starts with 1 proficiency in every Action Skill (not counting any proficincies you may have gained from your Race or will gain from your Class).
Suggested Ability Score Improvement (ASI). As part of your Background, you can increase one Ability Score by .5, up to 5; each sample Background will suggest one or more Ability Scores to increase that fit the theme of that Background.
Suggested Action Skills. Every character starts with 1 proficiency in every Action Skill (not counting any proficincies they may have gained from your Race or will gain from their Class), and will gain 3 Skill Points (SP) from their Background to place into one or more Action Skill(s) of their choice; each sample Background will suggest 1 - 3 Action Skill(s) to place these points into that fit the theme of that Background.
Suggested Tool Skills. Every character gains 2 SP from their Background to place into one or more Tool Skill(s) of their choice; each sample Background will suggest 1 - 2 Tool Skill(s) to place these points into that fit the theme of that Background.
Suggested Equipment. Every character gains a smattering of equipment from their Background, and each sample Background will have a few suggested pieces of equipment that fit the theme of that Background. All equipment can be found in Part 5.
Suggested Classless Feat(s). Every character gains a Classless Feat from their Background, and each sample Background will suggest one or more Classless Feat(s) that fit the theme of that Background; if you aren't sure which to pick, the Skill Training and Skill Master feats work well with any Background.