Playing positional chess is fine, but you still need to watch out for tactics. Mostly, it's recognizing elements of the position like hanging peices, a vulnerable king, or an overloaded defender.
As for setting them up... sometimes, and sometimes the opponent just makes an inferior move that makes the tactic possible. Setting traps is usually not the way to go, unless the move results in a good position even if the opponent sees through it. But often I run into a situation where I think to myself something like, "I could do that knight fork if only his bishop wasn't defending that square", and then try to look for a way to make his bishop move.

When yall are playing chess, how do you spot tactics? Do you set them up? Also, I'm a postional players and lately I've been reading books on attacking trying to have a rounded game. ( attacking style of chess) It just hasn't worked out to my likely thus far; do you think I should just stick to postional style of chess or try another approach?