At 10NL my standard raise is 0.60 + 0.10 pr limper. If this doesn't give me enough action I change tables. If it gives me too much action I increase the amount.

Post flop, if I hit and they call me down I'm usually good. If they raise me I'll start worrying. Usually I'll give them credit for a good hand and wait for a better spot to get their cash.

Edit: the answer to the topic question is "enough".