The appropriate choice depends on the context in which you are using the sentence.
"I looked happy here" is in the past tense and would be used when you are referring to a specific moment or period in the past when you appeared happy. For example, if you are talking about a photograph taken at some event in the past where you appeared happy, you would say, "I looked happy here."
"I look happy here" is in the present tense and would be used when you are referring to the present moment or an ongoing situation. For example, if you are looking at a recent photograph of yourself and you appear happy, you would say, "I look happy here."
So, to summarize:
- "I looked happy here" - Past tense, referring to a specific moment or period in the past.
- "I look happy here" - Present tense, referring to the current moment or an ongoing situation.
Choose the one that best fits the timeframe you want to convey.