覿 combines 見 (see) with 賣, which likely contributes the sound and may relate to the idea of a transaction or exchange, suggesting a face-to-face meeting.
Meaning mnemonic
The right side is 見 (see), and the left side 賣 suggests a marketplace exchange. Picture meeting someone in a busy market, seeing them directly among the stalls.
Reading mnemonic
For テキ, imagine meeting a friend at a tech fair: tech -> テキ, and you see each other among the gadgets.
