I NEVER know what to do here...

[Colombo]

ok so obviously check/calling isnt a good line.

I have always known this, but I didn't know if there was anything better...

Leading out - If Villian calls or raises then what? What's a good lead, 1/2-2/3 pot?

check/raising - I do this play sometimes, but it really cripples me when villian has a hand.

check/folding - I'll do this if the other player in the hand calls. I think this is also weak though because villian could always be continuation betting.

Which option do you guys think is best in this situation? There seems to be alot of various answers, which only tells me that check/calling is bad, but not what is best.

Thanks for the help though.