My prefix you can find in every potion
My suffix is between a place and motion
My infix may push you to pick up a girl
And fools believe my whole can store a soul
English is not my native language, so any remarks will be appreciated.
Knowing of some Native American and Australian Aboriginal beliefs that mirrors or cameras can steal their souls, I tried to fit them into the clues.
While those don't seem to work, a
"pH" is a property of every potion and "hot" would work for the infix, but the suffix is...more creative.
When we say "drive to town", the "to" is between a place(town) and a motion(drive).
necromancer - someone who is able to store a soul
Infix: romance - causes you to try to pick up a girl. (This is my main reason for trying this answer)
Prefix: Nec(tar) is a kind of potion including "nec"
Suffix: "r" is between "Promenade" (a place) and "Promenader" (motion).