Question about Enchantment spells...

[RigaMortus]

Ok, first the quick and easy question (which doesn't necessarily have anything to do with Enchantment spells, but anyway)...

Can I cast Charm Person on say, a shop keeper, from outside his store, but while I am looking at him through the window? Basically, he'd be within my line of sight (and range), but there would be a non-magical barrier of sorts.

Ok, now for the real question...

If someone makes a successful save vs, an Enchantment (again, let's say Charm Person)... Do they have any idea what happened to them? Are they aware someone tried to cast a spell on them? Are they aware who tried to cast it on them? Or does it simply not even register?

 

[Altamont Ravenard]

1) You need line of effect. You can cast through an open window, no problem (although its hard to be inconspicuous about it).

Line of Effect: A line of effect is a straight, unblocked path that indicates what a spell can affect. A line of effect is canceled by a solid barrier. It’s like line of sight for ranged weapons, except that it’s not blocked by fog, darkness, and other factors that limit normal sight.
You must have a clear line of effect to any target that you cast a spell on or to any space in which you wish to create an effect. You must have a clear line of effect to the point of origin of any spell you cast.
A burst, cone, cylinder, or emanation spell affects only an area, creatures, or objects to which it has line of effect from its origin (a spherical burst’s center point, a cone-shaped burst’s starting point, a cylinder’s circle, or an emanation’s point of origin).
An otherwise solid barrier with a hole of at least 1 square foot through it does not block a spell’s line of effect. Such an opening means that the 5-foot length of wall containing the hole is no longer considered a barrier for purposes of a spell’s line of effect.

2) The target know that it has resisted something, but does not know what or from whom.

Succeeding on a Saving Throw: A creature that successfully saves against a spell that has no obvious physical effects feels a hostile force or a tingle, but cannot deduce the exact nature of the attack. Likewise, if a creature’s saving throw succeeds against a targeted spell you sense that the spell has failed. You do not sense when creatures succeed on saves against effect and area spells.

AR

 

[Tessarael]

2) The target know that it has resisted something, but does not know what or from whom.

Spellcraft check DC 25 + spell level tells you what you resisted. Most shopkeepers won't be able to make that DC though.

Now if it was a magic shop ...

 

[RigaMortus]

Follow up:

Let's say I use Dominate Person on someone. Are they aware they are dominated? What type of control do I have over them? I know I can control their actions, but does that mean I can make them speak (or not speak) whenever I want? Can I make them say what I want? Can I make them think what I want?

Example: I Domiante Person on the king. I make him give all his gold away. After this action is done, will he realize what he did? Can he warn his guards that "something isn't right" with him?

 

[Spatula]

We've generally interpreted Dominate to mean that the subject only does what you command him to. Otherwise, he/she takes no action. Of course, you can command the target to act like nothing was wrong if you're interested in subterfuge.