Never Even Leaving A Comment Or An Ask - Tumblr Posts

im new to tumblr how does one tag how does one tumblr like i love the format and i love how it's like twitter in the sense that i can post without adding pictures but wtf am i doing this right? i've been lurking. observing. watching all you pro tumblrians i feel like it's obvious i've never posted anything on here just reblogging and scrolling never even leaving a comment or an ask i love tumblr tho and i love yapping I just don't get it how do i actually post on here it's like you're a different breed