How do I level up

[Drion]

Its my first time playing since the new update and how tf do I level up???
im at lvl 7 and I cant "give" potatoes and carrots.I tried left and right clicking like before and it still didnt work I even waited for like 15 mins with it in my invetory.

 

[AloneMoster9]

bro take carrots and potato in inventory and then check /level or click on level