We all know poker odds

Ok, we all know poker odds on when to call when to not call. But what about when its your lead and your options are checking or raising. Is there a system that works for you? Or is it just top pair bet..middle pair maybe bet depending on the opponent. Is it all based on your opponent or is there a odds type system for this as well?

When making any choice at all, look at what type of villains are in what seat around you.

Who is acting behind you? who is leading out?

Their stack sizes.

Pretty much everything equates to our decisions being made. And when you play a decent volumne u just naturally know where you stand in the hand.... I'm starting to find myself knowing what my opponent will do before he even knows, its quite funny

If in doubt, raise.
Fold equity.
If you just always raise, and never limp, your EV will go up.