Select the most appropriate word for the given group of words.

Tending to associate with others of one's kind.

Gregarious 

Meaning of all the words from the options - 
1. Pedantic - excessively concerned with minor details or rules; overscrupulous.

2. Pungent -  having a sharp and caustic quality.

3. Gregarious - associating in a flock or community.

4. Venial - forgivable.

Thus, the best suitable word is gregarious.