Well, naming is probably the easiest part. If you're going for a more traditional bugbear name, they're almost always two syllables with an apostrophe in between. Examples would be: Vo'kor, To'gur, Zi'gor, Wo'gak, U'mok, etc. Pretty much, you pick your first letter and go from there. Since your boards name is Noik, I'd stick with "n". Also, they tend to use long vowel sounds, which is why so many are "oh" or "ah". And then you just play with the sounds. Literally, just sound out random harsh combinations and see what you like.
Or, if you want to get away from the traditional, it's still usually good to pick something with a lot of hard consonants. Gnarlagg and Graavish are decent examples.
Alternatively, just change how you say the name you have now. I don't know how you pronounce it (given that I've never met you), but maybe it would be easiest to just start saying it as "No'ik". That's bugbear-ish at least.
And if you've already read the Wiki, there's not a lot I can tell you in terms of garb. Start with an earth-colored tunic and pants and just add to it. Use patches, rips, layers, warbraids, bloodstains, fur, runes, whatever. Just keep it within the greens and neutrals. Maybe a little red or orange here and there, but not too much. Purely chaotic colors belong to goblyns, bugbears be tah practical fer dat. Dey jus' want ta kill, not much care 'bout wat dey be wearin', uther den dee sleeve. NEVER forget dee sleeve. Seriously. You are not a bugbear without a bugbear sleeve.
Oh, and hats. Well, most bugbears I've ever known just used bandanas or a simple swath of cloth. Doesn't have to fancy as long as your head is covered.