I think your question needs more context.
TT is a nice starting hand to get to see a flop cheaply, but whether you're advised to raise, 3-bet, 4-bet or shove pre-flop really depends on a number of factors. For example,
Stack size:
If you are in a normal to deep stack game but have < 10 BB, then TT for me is an opportunity to shove depending on upsstream action and tendencies of downstream. For TT to hold up, we need to be playing heads up. We don't want to be over-shoving TT in a multiway pot as that is pretty much suicide a significant portion of the time.
If you have a large stack, you should be protecting it. It's fine to get into a pot with TT, but in this instance, it isn't for survival heads up, but for set mining or taking down the pot post-flop on a low yet dry board. Be careful when there are low straight and flush draws. There are a LOT of hands that beat TT outright and lots of others which play favourably into straights and flushes and higher pairs post-flop.
Position:
Like any starting hand, you need to be strong to open from UTG and hand-strength can diminish somewhat as you progress around the table (subject to action before you). TT is strong enough to open from most positions.
The problem with TT comes with opponents entering the pot befire you. If you are playing against tight, aggressive (TAG) opponents, then the action in front is likely to be a raise (from 2.2 to 3.5BB) typically....not a limp. So already calling it off is a risk, but with a potentially big reward. If additional downstrem players get in the action, your chances of coming out on top continue to diminish. With any three-way pot, you should be prepared to be up against a premium starting hand and a pocket pair hand. As more flat call to join the pot, you're going to need to expect opponents with suited connectors, Uh, oh...TT is really in trouble as soon as any J, Q, K, or A hits the board.
Options...Standard raise to open. 3-bet when acting second (to close out the pot from getting multiway) Flat if entering a multiway pot.
Point in game:
Early game, TT is a set mining tool. Occassionally you'll get away with the pot post-flop with a low board and fewer players in the pot.
Mid game, possibly similar to early.
Bubble: It's a large raise and play aggressive with the right flop.
Late: Pretty mush a shove most of the time.
Opponents:
You can and will vary your actual decisions based on the table and game you're playing. Micros can have a lot of really loose play so you're always going to be on your guard, but if you're playing a very tight table, you can decide whether you want to battle or just steal blinds. Open raise < 3BB if you want people to join you. Open raise > 3BB when you're wanting to discourage the battle.
Generally though, TT is risky and depends on a favourable flop to continue. The reality here is: TT is worse than JJ and JJ is bloody dangerous (and there is allegedly no right way to play them!)
I love a pocket pair because sets are so well hidden you can often extract value. But be sure, when you do hit, that you are betting your sets and not trying to play trappy. First off -- never play trappy if you are "in position". It wastes a round of betting. The exception: if you flop a boat or stronger, you can *sometimes* to allow your opponent to improve. But with a set, you want to get money into the pot or take it down. Second, you've given free cards if you try and play trappy. Straights and flushes and bigger sets will screw you so you don't want to be letting those plays in the door for cheap.
What I'd recommend is you just play according to your position. If you are the aggressor. C-bet your flopped set. If you called a raise or three-bet, just check and let the aggressor determine the next action.
I do not recommend donk betting.
Donk betting is raising out of position rather than allowing the aggressor to instigate the pace. Donk betting your set is ill advised. You will reduce your EV in most situations by allowing your opponent to get out of a hand they were otherwise already likely to CBet.
Summary
Whilst I always like to see a mid-high pocket pair as my hole cards, it is important that you do not over-value this mediocre made hand.
Good for heads up and a low dry board.
Very difficult to continue with flop with high cards, particularly out of position if you do not hit a set.
Be careful out there.
Regards,
JT