I spray perfume in my hair. I hold it an arm's length away or spray a cloud and fling my hair through it. I only do this when my hair is loose but I always get compliments. Some random guy stopped me in the street to say I smelled nice the last time I did it.
I used Banana Orchid, which is a Caymanian perfume a friend bought me, but I recently bough Jo Malone's Red Roses for the same thing. I loooove how that smells.
Disclaimer: I know some people say you're not supposed to and I haven't done it often enough to comment on any consequences but idc.