JJ+ I raise pre from any position.
TT-99 I limp any position, fold to much of any raise behind.
88-22 I will play in later positions, the lower the later the position, if I am sure there will be no serious raisers behind me to set mine.
If the table is very loose with alot of limpers and very few raisers only when they have really strong
hands I will even limp 22 utg and fold pre to any raise.
The most important part of lower PP's I take into account is how likely someone is to raise behind me. I am almost always only looking for a set anyway, so the more limpers the better, since it is either set or fold for the most part unless it has been folded around and I plan on representing what the flop would have hit then I will raise and represent high cards on the flop if called by the blinds and they check to me (and likely to re raise if they bet a weak amount then check/fold it as most of the time blinds are only betting if they actually have something, and rarely will double/triple barrel with nothing at all OOP, or with low pair getting raised) even if I do not hit a set.
I do not want to limp and have to fold to a raise behind. In general to call a raise you do not want call off more than 10% of your stack while at the same time they have a stack that is 10 times the size of the raise.
There is so much to account for positional, stack, and table/player dynamic wise there is no one way to always play PP's of the same rank in the same position even from table to table. The above is just a generic start.