[He laughs, which is a little mean, but he doesn't mean it that way. It's just that Astarion sounds so much like an indignant pup, sputtering and gagging all over the place; it's just that he looks precious like that, and there's something to be said for seeing your friend so undignified.]

You barely even drank it! You just got a few drops, that doesn't count.

[And then, with a goading little grin:]

Go on. Try it properly. Don't back out now. You aren't a coward, are you?