When it comes to expressing opinions or offering suggestions, there are several synonyms for the colloquial phrase "puts in two cents". Some common alternatives include "chimes in", "adds their input", "throws in their two cents", "contributes their thoughts", "shares their perspective", or "offers their insight". Each of these phrases conveys a similar meaning to "puts in two cents" by indicating that someone is contributing their thoughts or opinions to a discussion. By using these synonyms, you can add variety and nuance to your language while still conveying your message clearly and effectively.