I am currently about to start playing as a 1st level fey-pact Hexblade stiker and I'm acting as the rogue (traps, locks, and so on) in a small party. I am currently planning to take the multi-class 'Sneak of Shadows' rogue feat at level one and I have used it to help cover all the major abilities, apart from my perception, which is still an abysmal 1.
Could anyone make any suggestions as to how best to boost this vital rogue stat? Could anyone tell me if taking the Multi-class feat at level 1 and then a perception training feat at level 2 the best value I can get? The reason I took the multi-class feat is because I was hoping to add sneak-attack damage to my Hexblade attacks, encounter powers and dailies to help take down big foes quickly, will this work?
Edit
What I mean by acting the rogue is that my character has training in Thievery (from the feat), Stealth, Bluff, and Intimidate and is the go-to guy for those skills in the party. His weak area is that while he can disarm traps he has little chance of spotting them or finding secret doors, etc. Unfortunately I can't alter my base stats or my background to compensate. Would I be able to stack a theme on top of a background and would it interfere with my other skills?
Edit 2
Thanks guys, that's all really solid advice, I'll defiantly talk to the DM abut thievery instead of perception but they won't budge on minor changes to class fluff so I don't rate my chances. Still, I'm really happy with my class at the moment and want to keep it, so maybe I'll just keep a friend with me until level 2 (don't want to stretch my luck further than that because that's two people to fail a stealth check instead of one). Unfortunately I really need the Bad Sign background due to how few healing surges I get (that will be feat three). It's just a pity the multiclass feat doesn't train stealth too (are there any more of those I could stack for better abilities, or a feat that give bonuses to several abilities?).