Hand 1:
If you wanna fold any non A hand that beats your hand I like your play. But I'd like to aks you wether you did this because you had an 8 or wether you would have done this with any2 from time to time. Thing is your hand might have value here although prob. not after villians turn bet.

Hand 2:
Preflop is horrible. so why is this, well first of all you have a reasonable hand that will show a profit here by just seeing a flop. you can take some of Sklansky's thoughts on preflop semibluffing and apply it here. He claims that when you wanna bluff/semibluff pre you wanna do it with the best kinda hand that wouldn't show a profit by calling. Same goes here. you put money in pot knowing that you have ok but not super hand and going to play it OOP, only thing you add is FE. Pls just call and outplay him postflop and take the +EV it is already.

Postflop we talked about and I like. However Gabe has baller point about opponent.

Hand 3:
We talked about this and we agreed that preflop is monster reversed implied odds.