As group size increases the members of that group will have more people to interact with (interactants) which means that the interaction can become more formal, each member of the group will have fewer opportunities to contribute, the communication within the group becomes less intimate, and what?

the interaction consumes more time, and relationships become more complex

Explanation:

A group is a collection of two or more people who share some kind of relationship and communication, and collaborate toward some shared purpose. Thus, as a group changes in size it also changes in complexity, so the relationship, interaction and communication among its members may affect their commitment and groupwork.

faithful servants eumaeus and philaetius:

his ragged vest then drawn aside disclosed the sign conspicuous, and the scar exposed: eager they view'd, with joy they stood amazed with tearful eyes o'er all their master gazed:

these servants know ulysses by the scar he got when he was a child - so when he showed them the mark, they immediately knew this is truly their master and they hugged him, finally starting to believe his words.