This question can't really be answered well. In poker everything is about context:
* what position are you in
* has anyone raised already?
* is it a cash game? a tournament? an online game? a live game? a rush/zoom game?
* are players tight? specifically are players behind you tight or loose?
* is it a suited or offsuite hand?
* what is your stack? what are other players's stacks? for example, if you have a few short stacks behind, you might be facing a shove
* what is *your* image?
* is ante on?
The answer may differ drastically depending on answers to these questions. All that said, to simplify it based on most standard pre-flop ranges:
* if you are the first raiser, raise JTs pretty much on every position, starting with UTG. it's a fairly strong hand with a lot of draws!
* if you are the first raiser, raise JTo on CO and later positions
* raise or limp both
hands when on SB
* when facing a raise, call with JTs pretty much from any position. fold JTo
* call 3-bets pretty much from any position with JTs. fold JTo to a 3-bet
* if you're feeling brave, it is a fairly standard play to 3-bet JTs as a
bluff from SB or BB vs late positions (CO, BTN)