Against overly tight opponents, aggressive players usually thrive by taking a lot of pots from them without a hand and without a fight. But it's important to be careful here, of course, when a tight player finally starts snapping at your raises, 3-bets, steals. In this case, it's best to back off and bury your hand. The fewer players at the table, the more you should widen your pre-flop open-raising and 3-betting ranges while finding more spots to be aggressive post-flop as well. Aggression in poker works you only benefit when you apply it in a sober mind and carefully choose the right situations for this.