footprints; record of page visitors (e.g. in social networking sites)
to recognize; to recognise; to deem; to judge; to approve; to deem acceptable; to admit
very; considerably; by no means; not readily; middle; half-way point
clue; lead; key; handhold; hold
to seize; to catch; to obtain; to acquire; to understand; to grasp
what kind of; what sort of; what; no matter what (kind of); whatever; any
to take measures (in face of events being anticipated); to come to an agreement (in bargaining, etc.); to strike a bargain; to clap one's hands together