I want my teeth to show when I smile. Lip lift, or Veneers? (photos)

Your philtrum is quite short. I would recommend you first see a cosmetic dentist. I do perform many lip lifts on men and special techniques do apply. See link below. 

The distance between your nose and upper lip appears to be normal.  A lip lift will shorten the distance and may make it look abnormally short.  You may be better off considering a rhinoplasty, which will allow your columella to be raised higher and achieve the desired look.Best Wishes,Gary Horndeski, M.D.

Thank you for submitting multiple pictures, but the most important picture which is the one in a relaxed position with your mouth slightly open, is lacking. That picture would show how much teeth if any is visible. Your assessment is correct. Your philtrum is not tall. Your nasal spine and caudal septum sit low and may prevent your lip to rise while smiling. I would need to examine you and do measurements to give you the definitive answer, but it seems that you would need a rhinoplasty to reduce the prominence of your nasal spine and caudal septum. The primary objective of a lip lift is to reduce the height of the philtrum. It can be made as short as 10 mm or occasionally slightly shorter, but without examining you, it is impossible to tell you if this procedure is indicated in your case.