Never limp, fold/raise pre-flop
Yeah. When I buy in for 200 BB at $1/2 NL cash game. I only limp on the button, since I'm priced in to see a flop, unless SB or BB raises.
The problem with limped in a 9 or 10 player table is that when you're UTG or middle position, it's not a good call. Because you'll not gain any information to players who limp or even raise after you. You want to be the raise, control the pot size by opening the betting, then get 2-3 players to see the flop with you, at most. Then you just play your hand or outplay your opponents on the flop. I can understand not wanting to commit chips, but you can't play scared. By raising everytime(unless on the button) you enter the pot, it's harder for other to put you on a hand. When you miss the flop, you can check/fold. But if you hit the flop, something like middle pair, top pair with weak kicker, value bet ! If you hit a monster hand, you can check/raise and check the turn and bet the river.
So in summary. Always fold/raise pre-flop. So that it does 3 things.
1. Get other to fold behind you, get better position on the flop.
2. Increase the size of the pot with strong starting hands.
3. Take the lead and other with often check to you on the flop when they miss. Then you can c-bet(1/2 -2/3 of the pot), which will just look like a continuation bet. Anyone with a pair or straight/flush draw will likely call your bet. If turn is a blank, bet when check to you. You can make a pot size bet to make your opponents pay to chase the straight/flush draw. If have a pair or better on the flop, and turn. They are getting 12 outs(open ended straight with a flush draw) at best, which is 25%. OR 3:1 to call the river.
Try it out next time, and let me know how it works out !