Collecting certain Overdrive (and in some cases, Warp Drive) unusuals. If I added you and you have a hat with these effects, chances are I am interested. If you don't want to sell, let me know and I'll understand.

Mostly after cool all class hats, but I also main Engie, and will always be interested in those effects on him. If I am interested in your hat, I will offer fair price. I do not want to lowball, or buy for bot prices.