I give with spoon
We just put it into the bottle teet so he can suck it out like milk just hold it to his mouth while he gets it all out
If he’s bottle fed you can use the top of the bottle with the gripe water in the teat of the bottle (works with calpol too), putting the gripe water in baby milk also works but I preferred putting it directly in the teat of the bottle. There are also medicine dummies on Amazon
We do it either by a syringe, right amount in a bottle or we just dip his dummy in the bottle