Don't directly drink with your mouth; use a bottle or put your finger one the spout and the water will flow up from the small hole.

See this example on youtube

Don't directly drink with your mouth; use a bottle or put your finger one the spout and the water will flow up from the small hole.

See this example on youtube.

Don't directly drink with your mouth; use a bottle or put your finger one the spout and the water will flow up from the small hole.

See https://www.youtube.com/watch?v=SIoVSOsyWuc

Don't directly drink with your mouth; use a bottle or put your finger one the spout and the water will flow up from the small hole.

See this example on youtube