What to call headsup from SB?

[Misja]

I wonder which hands I can call from SB when it is folded to me. And when should I raise?

Let's say the blinds structure is like the $2/$4 and the BB is an unknown.
I would raise with A9+ K8+ and any pp.
With Ax and hands like JTs or T9s I would just call.
What do you guys say, is that too loose?

[RyanCMU]

Im somewhat agressive in this posistion sometimes too agressive, especially when the BB has passive stats. But generally; im raising any pocket pair, A8o+, and A8s+.

[sharpie]

I'm looser than that. Any ace, K7, Q8. I very rarely open limp, only would against a loose passive or maniac, and I'm still raising decentish hands.