It depends, if I decide to go that way, I will do it when I have a few outs to improve, otherwise I will just fold the hand.
I think you're good enough to know that question is way too vague to give a quality answer to. I'll put a couple of tips though.
1) The lower your opponents fold to 3-bet is, then the wider their range will be = the more often they will whiff the flop, so you'll be c-betting for value.
2) If you're in position, pretty much c-bet near 100%. OOP the board texture and your opponent will be key in if you give up or not. If they are aggressive, or have a lot of different stats that indicate they don't like to fold, then it's best to let it go unless you have good stack sizes to double and push your opponent off their weak range.
AK is a pretty good hand to get all-in with before the flop. You are only a big dog against AA and KK, and there are only half as many of those out there as there usually are, so if your stack is short enough might as well go all-in
Very difficult hand to play post-flop, on the other hand
If you have a single opponent cbetting should be pretty standard. Like John A said, in position you cbet pretty much 100% of the time.
OOP you need to look at that board. What kinds of hands is this villain likely to be calling with. If the board is coordinated (4h7h8s) then you probably just check there. The range of hands that someone could be playing in position on you is likely to have smacked that board hard, so a cbet is likely wasted. However is the board is not coordinated (Jh6s2d) then you can cbet that out of position pretty successfully. There is a likely over card to most pocket pairs, not real draws on the board, and if he hit a pair of 6's (like an A6 hand) he still is likely to fold there due to the over cards and weak hand strength.
However, all that said - if you are looking for a simple answer, its probably fine to cbet a missed flop with AK almost all the time. You can do better than that, but as a general rule its probably fine.
It looks like from your original post, it's just you and one other player, so then I might do another 3bet just to continue to present strength, especially if I am the first to act.
And it's easier how fast ppl bet/take their time some ppl have timing tells as well..
I think time tells are impossible to use.
You know that they are taking time to make their action, but you don't know why.
Are they playing at 6 tables and were distracted for a moment?
Did their kid come up and ask them a question?
Did they spill their drink and are desperately trying to sop it up?
Are they trying to decide what action to take?
The reason it is not a "tell" is that you cannot tie the action to the reasoning behind the action.
I know for me I am often late to act on tables because I am cycling through them and get to one action with a few seconds left due to working through a lot of stuff.
I wouldn't worry to much about timing tells.
I wouldn't go quite that far. Timing tells aren't tremendously helpful, but they're also no completely useless.I think time tells are impossible to use.