Depends, what champ do you play? On a dedicated splitpusher like Tryndamere, Jax, Yasuo (kinda) Fiora, Nasus, etc, you want to farm, freeze the lane when you can and force your laner off of the minions. Let the wave build, then shove, and threaten a tower dive or roam to take herald if your jungler is up for it (they should be, you now have superior lane pressure). If you cant just 2 shot them under their tower, or take herald, then steal every bit of the enemies JG camps that you can before the wave hits middle of the lane again. Rinse and repeat. Look for TP plays (usually bot) Or, if youre SUPER ahead, and your team mates are absolute monkies, IGNORE ALL OF THAT ADVICE.
If your team mates are dog shit, then take your lane advantage, use the first bits of advice to make your laner hate their life and blame their JG for not ganking, and then proceed to run it down top for the entire game.