As esperantist i need to be recognized every where and any where..wether in the internet or t.v,wether i work through the road or bar..which mark should i wear and how can i get it?

I suggest that you wear la verda stelo, which has been a symbol of Esperanto from earliest days. You can get badges from Esperanto associations.

I recommend you to create an own symbol and put an unique esperanto language slogan around. There's an OpenOfficeDraw draft excample at sloganoshablono. Afterward print it to 100 gram weight paper. And afterwards use a lamination paper machine to make it somewhat waterproof. In Germany every such called "Copy Shop" will be capable to do so. But of course there also excist lamination paper machines for home use. Put a hole inside and fix it at your backpack at your next Junulara Esperanto renkontiĝo.

That's it.