So I have the User Id of someone in Buddypress.
What is the function to print out their Avatar?
What is the function to link to their profile?
This will display the user avatar by user ID and also make the avatar a clickable link to their profile.
<?php $member_id = bp_core_get_userid( '1' ) ?>
<a href="<?php echo bp_core_get_user_domain( $member_id ) ?>"
title="<?php echo bp_core_get_user_displayname( $member ) ?>">
<?php echo bp_core_fetch_avatar ( array( 'item_id' => $member_id, 'type' => 'full' ) ) ?></a>
Obviously replace the number in the first line with the userID that you want.