Yeah that last response wasn't helpful... you dealt with that really well!
Anyway, I just drink mine with water, but it's a a whey-based protein not soy, so I'm not sure if it's different. One thing that made a big difference to the taste was measuring the amount of water recommended precisely, and toning it down if it's too much - a watery protein shake is even worse than a perfectly mixed one, if you ask me. Does your powder have a flavour?
Two other ways I've tasted protein powder in other things and didn't want to gag:
1. Mixed into plain yogurt or blended with fruit and milk for a smoothie.
2. Blended with a frozen banana, 2 tbsp of cocoa powder, and 1 tbsp of instant coffee for a sweet snack.