Your dexterity is increased by 1 and your wisdom is increased by 2.

Foxkin reach maturity between 22 and 26, and will usually stop physically aging after their early 30's. Although not all of them do, and the ones that don't will rarely live past their early to mid 40's.

Foxkin are usually lawful neutral, with a decent number of them being lawful good; a Foxkin with an alignment of chaotic or evil almost unheard of. Foxkin will also typically avoid violence at whatever reasonable cost they can; and will almost usually do whatever they can to not kill something, unless they plan to eat it. 

Foxkin are right on the edge of small and medium creatures, they can be anywhere from just under 3 and a half feet tall, to just under 4 and a half feet tall. 

If you want to roll for the weight of a Foxkin then use 3'4'' as the base height, and 34 lb. as the base weight, then add the same 1d12 roll to both, and double the weight. 

While the  35 ft walking speed the Foxkin have isn't particularly, they are faster than most things of a similar size. Additionally you have a 10 ft climbing speed

You have advantage on hearing and smell based Wisdom (Perception) checks. 

You can attempt to hide even when you are only lightly obscured by foliage, heavy rain, falling snow, mist, and other natural phenomena.

Foxkin mostly speak in Sylvan, but they usually live in somewhat close proximity to halflings, and will know halfling.