Moves

[AQheartbreak]

I have a question. I've been making a few preflop moves, and was wondering if their +EV or am I just getting lucky. An example would be in the big blind holding a hand like QJ suited. In a loose passive games, when over 5 people limp, I raise, confident that no one wil limp-re-raise me. Is it -Ev to take a hand like this out of position? Pot odds say its okay, but how much do you give up by taking this in one of the worst positions? Assuming my flop play is good? Should this only be done on or near the button?
Another play is betting into paired boards. Ill usually bet into paired board that have either a middle high card, Tens-Queens and a blank low card. This seems like an obvious play, if it seems that no one has anything, raised or not preflop, as long as I was a caller. I tend to do this in early position, such as out of the blinds, but never in late, because it looks like I'm stealing. I almost always bet out when i do flop trips (Board paired), trying to three bet or planning a check raise on the turn.
These seem like standard plays I should be making, but I do it occassionally, you know, if the time seems right. How often should I pull these off, if often at all?

Eric

[SinCityGuy]

Raising multiple limpers from the BB is OK with the hand that you mentioned (QJs). You should also do it frequently with hands like 55 and Axs. You're only investing one bet (since you're already in), and you'll get paid off handsomely when they hit.