High hopes can be expressed in different ways depending on the context and tone of the conversation. If someone is optimistic about a situation, you might hear them use phrases like "great expectations" or "big dreams". A more informal way of expressing high hopes might be to say "keeping my fingers crossed" or "hoping for the best". Additionally, phrases such as "confidence in the future" or "positive outlook" can convey a sense of hopefulness. On the other hand, if someone is feeling uncertain about the outcome of a situation, they might use expressions like "guarded optimism" or "cautious anticipation". Whatever the situation, there are plenty of ways to express high hopes that fit the tone you're going for.