Jaissle, 38, took charge of his first competitive game as the new Newcastle manager, with his Liverpool counterpart Andoni Iraola in the same boat.
Newcastle took the lead after just five minutes through Anthony Elanga and were good value for their lead heading into half time.
Cody Gakpo levelled things up shortly after the break, but Liverpool didn’t have long to celebrate as Newcastle restored their lead just two minutes later.
It was starting to look like the home side were about to secure a memorable and well-earned win.
Their parade was well and truly rained on, however, when Liverpool were awarded a penalty right at the death after Lewis Hall brought down Victor Munoz.
Dominik Szoboszlai slotted home and the spoils were shared, but after the game, Jaissle made it clear that he thought the decision to award the spot kick was “really soft.”
"If you give it, it's a really, really soft one and then you have to give many, many penalties throughout the game and throughout the season. I'm not a big fan of the decision,” he said.
"I'm proud, we are proud to see a unit on the pitch. The guys were trying to do it the intense way that we wanted to play.
“Front-footed, vertical in our approach. This, after such a short amount of time, I'm really happy.
"That is our philosophy, yes. It depends on the opponent but we have a clear idea of how we want to play football and today we saw quite a lot of that.
"I am enjoying it already. I saw the young lads fighting for everything. There was commitment. A good synergy with the fans.
“This is special, it's going to be a really cool season with big challenges as well. We're realistic but we will go there.
"Amazing. Pure happiness and brightness. I heard many things but I felt the goosebumps straight away.
“You get energy from the stands and you just want to deliver it on the pitch. This synergy will be something special."