"Loki" , meet "Loki"

loki does have a since o humor

how dose one build a good friendship with Loki?

Well, for me personally, I thought it was appropriate for me to form a good bond with Loki before I start working with him. It's because I'm afraid of making divines angry.(Pitiful, isn't it?) But Loki and I are getting very close :) And to further answer your question about Tom-Loki, I think he would like it! I've put a green little My Little Pony figure on his alter since, ya know, The whole Sovaldifari thing XD

how dose form a close bond with the norse god loki?
how do I get his love and affection?

You don't "get" his love and affection by doing anything any more than you "get" a person's love and affection by doing anything. It's not one thing or another really; Loki is as much a person as anyone else. You might accidentally bump into him and him like you off the bat, or you might keep an altar to him for 30 years and him not like you one bit. It's in what you do and how you do it and why you do it. If it's for selfish reasons such as, "I want a deity to love me because ___" you aren't going to get much of anywhere with Loki, or if you do it's likely that it won't make you happy that you wanted it. Loki has a tendency to show you your flaws, often so you can fix them or learn to live with and love them. So if you are running after him because you feel you need his love and affection in some way, it's possible he'll show you what you really need.

Honestly, do research into the Northern cultures that worked with Loki, read some blogs on him, and figure out what you can/want to do in order to talk to him and if you want to. Remember not to ask for more trouble then you can handle; Loki, though I love him to death, can be tough to handle at times. Sometimes it's hard to handle the truth that you are hiding from, but when he does it (at least with me) it's never out of spite (though he does seem to get a kick out of it).