Low pairs will never make it in low limit hold em - you cant bet anyone off the pot, and opponents will call all the way with any high card. Most poker techniques go out the window at this level. Personally I would call if you get a picture card, and bet all the way if you flop top pair (otherwise fold). People will stay in to the end with second pair, bottom pair, under pair, flush draw, straight draw, ace, and anything else really, so just keep betting until higher card flops.