Germinating process?

I have three seeds that I got from a friend that I'm pretty sure are kinda old, but they're still good. I put all three of them in a glass of water (bottled) and all sunk. After, I did the paper towel method. One of them looks like it's about to root, but the other two will need more time. It's been almost 24 hours but I know with older seeds it can take longer.

My question is, my paper towels are dry and there is only a little bit on condensation left on the upper plate. Are you supposed to replace them with moist paper towels if they get dry or just leave them?

Note: This IS my first attempt at this lol

I always keep my paper towel moist, its seemed to work for me.

if they dry out, just add some more water. Don't let em dry out. That will normally result in dead sprouts.

well you could just plant them if your doing a soil grow . lot less hassle imo

NEVER let them dry out.
I germinate all seeds the same way. In a clear plastic tub of water with a lid (from chinese take-away) in my snakes vivarium (85f).
As soon as they pop, very carefully into a root-riot cube. Works great.

I use a empty dvd case (half baked to be specific) and a folded moist napkin . It Stays moist without needing to wet it again for days.
Sit it on top of your cable box and youre good to go.

I'm actually popping a few beans with this method right now .

Out of the 20 I put two days ago I'm only waiting on 6 to show tap root

What a shameless example of self promotion. I approve.

I just put em in a damp paper towel inside a baggie in the sock drawer for a couple days. No problems with drying out this way.