Do you speak to Loki in any way?
I speak to Loki in many ways. Through prayer, meditation and channeling.
Has anyone ever interacted with him?
Of course! We're called Lokeans for a reason ;D
If so, how is it done?
As far as I'm concencerned, deities cannot physically manifest before you. How ever there are things called Pathwalking, journeying, ect that can take it to a whole new level. I've met up with Loki and Surtr through pathwalking a few times. I rarely pathwalk.
You can also communitcate through divination such as runes or tarot cards. How I go about that is I take my cards, whisper a deity's prayer and let the deity's energy flow through me and into the cards. Similar with runes. I shake the runes and let the deity handle it.
With channeling, it takes practice and paitience. So does pathwalking. My definetion of channeling is basically inviting the deity into yourself; your mind to speak with you one on one. My preffered method is channeling.
When I channel him, I can hear him. It also has do to with Clairaudiance. I assume his voice sounds different for everyone.
If you have anymore questions, feel free to mail me.