Also depends on the aggressiveness of your opponents. Adjust your bet sizing based on position and opponent betting patterns. A small pair is really strong against a tight player. Not so much against an aggressive maniac.
it depends on many factors like the level of blinds, your position at the table, your stack, etc. in early position a small raise like 2-3bb is usually a reasonable play. limping might also be a good choice. in middle or late position raising 2-3 bb is better than limping in most cases taking into account that you will be most likely the last player to act postflop.
generally i play position with small pairs because they almost always lose every time, and it also depends on the blinds so early on in the game ill play with a wider range and later on ill tighten up my gameplay
I do not enter. I take care of my stack. Once via Doyle Brunson folded with a pair of 88, and the TV commentator was astonished, but I was impressed that several K's and A's appeared on the flop, and Brunson avoided losing chips and wondering what the hell to do. Good hands, you enter, bad hands, you fold.