看样子 is a fixed phrase used as a sentence adverb or parenthetical to express a tentative judgment based on observable evidence — like 'it seems' or 'it looks as if' in English. It typically appears at the beginning of a clause, followed by a comma, and the speaker is making an inference from what they see or hear. Unlike the literal verb phrase 看样子 ('look at the appearance'), this is a conventionalized expression. It is not separable (you don't split 看 and 样子 in this usage).