When conjuring, do you only get exp based on your conjuring or also on what your minions attack/kill?

You get no xp for stuff your summons kill. Only when you use skills yourself.

I believe If you use spells in combat xp increases this includes restoration and using bound weapons and soul trap gives you alot more xp than summons

Ahhhhh I forgot about soul trap

Casting (and recasting) bound weapons while in combat grants experience. If you find yourself "safe" while in combat you can spam the skill up to 100.

i think you gain xp when summons are in combat with something, even you. Same with bound weapons, you gain xp while in combat and the spell is active