teaching my baby mouse how to drink water

Mikayla

I found a baby mouse all alone a few weeks ago. I've been nursing him with kitten formula for about 2-3 weeks but he's old enough to where he can eat solid foods fairly well. The only reason I still nurse him is cause he needs to get water somehow. I don't know how to get him to use the water bottle I have for him in the cage. it's a normal rodent bottle. anyone have any tips on how to teach him how to use it?? (he's bigger now then in this photo)