[maximthepain]

First make it selectable, Then show it, then what happens when he clicks you just use the public OnPlayerClickTextDraw

Here is the wiki
https://sampwiki.blast.hk/wiki/OnPlayerClickTextDraw
https://sampwiki.blast.hk/wiki/SelectTextdraw
https://sampwiki.blast.hk/wiki/CancelSelectTextDraw

Read about it and see if it fits your needs, if you need tutorial on how doing it:
https://sampforum.blast.hk/showthread.php?tid=328267