When determining your ability scores, you increase one of those scores by 2 and increase a different score by 1, or you increase three different scores by 1. You follow this rule regardless of the method you use to determine the scores, such as rolling or point buy.

Your class’s “Quick Build” section offers suggestions on which scores to increase. You’re free to follow those suggestions or to ignore them. Whichever scores you decide to increase, none of the scores can be raised above 20.

However, most blinkers take on the martial prowess of their ancestry, making their Strength score increase by 2, and their Constitution score increase by 1.

Blinkers mature at the same rate as humans but live longer. A blinker's average lifespan is about 160 years. 

This might change based on the blinker's ancestry. If they happen to be part elf, they might take on that longer lifespan. This is up for discussion between you and your GM.

A blinker's life of ridicule can often lead them to chaos. Most blinkers tend to be chaotic neutral, though some that take after their cyclops ancestors might lean more on the evil side.

Blinkers have a wide range of the absolute smallest being 5 feet, and the absolute tallest being 8 feet. They range between 110 and 340 pounds. A lot of their size depends on their parents. If they have a halfling parent, they'll likely be on the much shorter side, but if both parents are blinkers, they'll likely be on the taller side.
Your size is Medium

Your base walking speed is 30 feet.

Due to your body being built for fighting, you have proficiency in the Athletics skill.
You also have advantage on Intimidation skill checks against creatures that can see you.

You have disadvantage on attack rolls made against a creature further than 30 feet away.

Your singular eye isn't only a downfall, it's a strength as well! You have superior vision in dark and dim conditions. You can see in dim light within 60 feet of you as if it were bright light, and in darkness as if it were dim light. You can’t discern color in darkness, only shades of gray.

As long as you are familiar with the location you are in, (ex. a tavern you've stayed in, a city you've lived in, a forest you've traveled) you can shift your focus to anything out of the ordinary.

For one, you have advantage on Investigation checks in locations you're familiar with. You also have a +2 bonus to your initiative rolls.

If you venture outside of this area, you lose these bonuses.

Familiarity Rules:
For each new location you venture to, you can make an Investigation check once every 24 hours. This means you can try once inside a city for the day, but you could try to investigate a tavern inside that city, which would refresh on a separate cycle. Whether the Investigation check succeeds or not is based on the Familiarity table below.

When using the Familiarity table, where a location not listed would fit best is at the discretion of the GM. For individual buildings, the bonus only applies to rooms you've seen already. (In a dungeon, it might be best to classify each room as its own "building")

Before making the skill check, you must have spent an amount of time in the location equal to 1 minute multiplied by the DC of the check.

 Familiarity Table:

Using the character builder, you can switch between "Familiar" and "Unfamiliar" to apply the bonuses to your character sheet, depending on your location.

You can speak, read, and write Common and Giant.