There are numerous synonyms for the phrase "we have to make up our mind though," which can be used to convey the same idea or sentiment in slightly different ways. Some examples of synonyms for this phrase include "we need to decide," "we must make a choice," "we have to determine," "we should settle on," "we are obliged to come to a conclusion," and "we must reach a verdict." Each of these synonyms emphasizes the need to reach a decision or finality, albeit with varying degrees of urgency or conviction. Ultimately, the choice of synonym may depend on the context or tone of the conversation, as well as the speaker's intended meaning or emphasis.