Watford interim manager Hayden Mullins said: "It was a hard-earned point and if there was one team that deserved to win it in the second half, it was probably us. I'm happy with the energy levels and the commitment.
"There are a couple of decisions that could have gone either way but we just didn't really get anything clear-cut today. They are a good side but we wanted to impose the game on them.
"At times, I think we did that, and it is important to get the fans on side and we did. I have had a fantastic six or seven days to work with the lads every day. I absolutely loved it. Nigel [Pearson] was in today and we are in tomorrow so we will see what happens with training."
Palace manager Roy Hodgson said: "We are pleased with the point, especially after the week we have had. To go to Burnley and then play against Bournemouth with 10 men, it was a very fatigued team. It was a sterling effort from the players. We were running on empty but I'm pleased we earned a point and it's been a good week.
"Gary Cahill made two fantastic challenges to stop them scoring a goal on the counter-attack, but we should have covered that better. There were a lot of tired minds and bodies, and as a result, I have to be delighted with the players' character to ensure we came away from here with a point. It was a team effort and Jordan Ayew worked his socks off up front."
On Wilfried Zaha: "I thought he did excellently well, and I'm certain I'm not speaking out of turn here, but the yellow card and foul against him was obviously wrong. He is just turning and the defender moves across him and hits the ground. It certainly wasn't a foul but I thought he did exceptionally well in the second half to play as well as he did and he was a constant threat."