You should definitely learn how to play all styles. I play mostly TAG but I adjust to the game. In short handed games I tend to play more loose in late position as positional advantage is more important. If my table is full of rocks, I will start playing more loose and stealing more pots. It is generally best to play in a style opposite of what the other players at your table are splaying. I also have occasionally found players so bad that when they enter a pot I will enter will almost any 2 cards. The reason is, if I hit 2 pair or better, I have a good chance of taking their whole stack. I want their stack before they lose it to someone else. I also like to show a bluff against these opponents once in a while. This puts them on tilt and it is much easier to take their stack. I call these my fish implied odds.