Everything depends on how play your opponents and what is your position at the table.
PREFLOP
A: If you are on early or middle position and your opponents likes limping or are tight, you must play aggressivley, raise if nobody earlier did it, if sb raised, your 3-bet should be around 3 - 3,5x
B: The same position what above but table is agressive, 3-bets, 4-bets are very often you dont' want to scare truculent players. Here you can use slow play.
C:Late position give you much more information, the same, you can use slow play-limp [but almost never when nobody does beting]
FLOP
A:Not every flops are safety for you with premium hands, if you have f.e. kings and the flop shows flash draw or high straight draw or include ace [better if those are two aces, more chance noone has ace in this spot] you have to be careful. Kings/queens are strong preflop but after not necessarily, this is a repeated mistake. If you see resistance, you should ask yourself "what is he calling me with?"
Most of the time we play premium hands aggrresively